Ages 18-24? Explore Prime for Young Adults and see if you are eligible

Getting the best time to plant broccoli right can make the difference between a bumper crop and a disappointing season. Broccoli thrives in cool weather, so timing your planting around local frost dates is key. Plant too early and frost can damage seedlings; plant too late and heat stress triggers bolting, leaving you with bitter, small heads. For most gardeners, early spring and late summer windows work best.

Beyond timing, soil prep matters. Rich, well-drained soil with plenty of organic matter supports strong root growth. Spacing plants 12-18 inches apart gives them room to develop full heads. Consistent watering – about 1-1.5 inches per week – keeps leaves crisp and prevents stress. Many gardeners find that mulching helps retain moisture and regulate soil temperature, giving broccoli a steady environment to grow in.

Whether you’re starting seeds indoors for a spring crop or direct sowing in late summer for fall harvest, paying attention to soil temperature (60-70°F) and sunlight (at least 6 hours daily) sets your broccoli up for success. For more seasonal guidance on other plants, check out when is best time to plant rose of sharon.

1
Prime Best Seller

HOME GROWN Broccoli Seeds 8 oz

HOMEGROWN
9.8 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
A high-germination broccoli seed pack for sprouting or microgreens that yields nutrient-dense sprouts in just five days. Ideal for indoor year-round growing, it's packed with sulforaphane and vitamins, making it a great choice for health-conscious beginners and experienced growers alike.
Pros & Cons

Pros

  • Fast 5-day turnaround from seed to harvest.
  • Nutrient-dense with high sulforaphane content.
  • Easy to grow indoors year-round with minimal equipment.
  • Non-GMO and heirloom variety for purity.
  • USA sourced and packaged for freshness.

Cons

  • 8 oz bag may be more than a casual user needs for occasional sprouting.
  • Requires daily rinsing during sprouting to prevent mold.
  • Some users prefer microgreens grown in soil for a different texture.
Detailed Review

The HOME GROWN Broccoli Seeds 8 oz pack is designed for anyone wanting to add fresh, homegrown sprouts or microgreens to their diet without the fuss. Whether you are a seasoned gardener or a complete beginner, these seeds make it simple to grow nutritious greens right on your kitchen counter. The product targets health-conscious individuals who value quick, convenient access to superfoods like broccoli sprouts, known for their sulforaphane content and antioxidant properties.

One standout feature is the remarkably short growing time. You can harvest sprouts in just five days, which is ideal for those who want immediate results. The seeds boast a high germination rate, so you are likely to see consistent growth batch after batch. They are also non-GMO and heirloom, meaning you get seeds that are true to their natural form without genetic modification. The nutritional profile is impressive: these sprouts pack vitamin C, vitamin K, and iron, making them a powerful addition to meals.

In terms of design and build, the packaging is practical and sealed to preserve viability. The bag is resealable, which helps maintain freshness after opening. The product includes an online grow guide that walks you through the process, from soaking to rinsing to harvesting. This is especially helpful for beginners who might be uncertain about sprouting techniques. The seeds can be used with sprouting jars or microgreen trays, and they require no soil, which simplifies cleanup and reduces mess.

While the seeds perform well overall, there are a couple of potential drawbacks. The 8-ounce bag is generous, but if you only sprout occasionally, it may take a while to use up. Also, like all sprouts, they need regular rinsing (usually twice a day) to prevent bacterial growth or mold. For those who prefer the earthy taste and texture of soil-grown microgreens, these sprouts may feel a bit different. However, these are minor considerations given the product's overall ease of use and health benefits.

Verdict: The HOME GROWN Broccoli Seeds deliver on their promise of quick, nutritious sprouts. They are an excellent entry point for indoor gardening and a reliable source of sulforaphane-rich greens. With high germination rates, detailed guidance, and a strong health profile, they are well worth trying for anyone looking to incorporate more living foods into their daily routine.

2
Prime Editor's Pick

Purely Organic Waltham 29 Broccoli Seeds

Purely Organic Products LLC
9.6 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
These Purely Organic Waltham 29 broccoli seeds offer a reliable, high-germination heirloom variety packed with flavor. Ideal for home gardeners seeking organic, non-GMO seeds that produce crisp, dark green florets.
Pros & Cons

Pros

  • Certified organic and non-GMO, so you know exactly what you're planting.
  • High seed count for the price, offering great value.
  • Versatile growing zones from 2 to 11, suitable for most US gardens.
  • Heirloom variety means you can save seeds for next year and maintain genetic diversity.
  • Detailed planting instructions included, making it easy to get started.

Cons

  • No customer reviews yet, so feedback on performance is limited.
  • Requires careful hardening off and consistent watering for best results.
  • Seeds are small and need careful handling during sowing.
Detailed Review

Purely Organic's Waltham 29 broccoli seeds are a solid choice for home gardeners who value organic, non-GMO, heirloom varieties. With 750 seeds in each packet, you get plenty for multiple sowings or for sharing with gardening friends. This variety is known for producing dark green, slightly bluish florets that are both crisp and flavorful.

The USDA Organic certification ensures these seeds meet strict standards, and because they're open-pollinated, you can save seeds from your best plants for next season. The Waltham 29 variety has been a garden favorite for decades, thriving in a wide range of climates from zone 2 to 11. With full sun and well-drained soil, you can expect heads that are firm and tight when harvested in the morning.

Each packet is designed with the gardener in mind: the front shows the variety clearly, while the back includes detailed sowing and care instructions. The seeds are packed fresh for the current season, which helps ensure high germination rates. Although the seeds themselves are tiny, proper handling is straightforward with the recommended indoor starting method.

One potential drawback is the lack of customer reviews, so first-time buyers don't have much user feedback to rely on. Additionally, like most broccoli, this variety requires consistent moisture and attention during hot, dry spells. It also needs a proper hardening-off period before transplanting outdoors.

Overall, these Purely Organic broccoli seeds offer excellent value for organic gardeners who want a reliable, heirloom variety. The combination of organic certification, high seed count, and wide adaptability makes them a strong pick. Just be prepared to give them the care they need for a bountiful harvest.

3
Prime Limited Time

Food to Live Organic Broccoli Seeds for Sprouting

FoodtoLive
9.5 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
These organic broccoli seeds from Food to Live offer a convenient way to grow nutrient-dense sprouts at home. With high sulforaphane content and a solid germination rate, they are a great choice for health-conscious home gardeners, though some users report mold issues with improper technique.
Pros & Cons

Pros

  • Excellent nutritional profile with high sulforaphane content
  • Simple and fast sprouting process suitable for beginners
  • Good value for money compared to buying pre-grown sprouts
  • Organic and non-GMO quality ensures clean, healthy produce
  • Customers report strong germination and tasty, crunchy sprouts

Cons

  • Some users experience mold or low germination if not rinsed properly
  • Inconsistent quality reported in a handful of reviews
  • Seeds may require longer soak time than other broccoli varieties
Detailed Review

Food to Live Organic Broccoli Seeds for Sprouting are designed for anyone looking to add a nutrient-packed, homegrown vegetable to their diet. These seeds turn into broccoli sprouts in just a few days, making them ideal for health enthusiasts, families wanting to sneak more greens into meals, and gardeners who enjoy year-round indoor growing.

The standout feature here is the high concentration of sulforaphane, an antioxidant that has been widely studied for its potential to support cellular health. The seeds are organic, non-GMO, and kosher, which appeals to a variety of dietary needs. Sprouting is straightforward: soak a tablespoon of seeds, rinse twice daily, and within a week you have a jar full of crunchy, sweet sprouts that can top salads, sandwiches, or smoothies.

From customer experiences, the majority are positive — many call the seeds reliable with good germination rates. Users appreciate the bulk size, which lasts for months or even years if stored properly. However, there are a handful of complaints about mold growth or poor sprouting. These issues often stem from inconsistent rinsing or high humidity, so following best practices is key. A few reviewers also note that the seeds are smaller than other brands and may need a longer soak.

On the downside, this product requires a bit of attention. If you skip rinsing or leave sprouts too wet, mold can develop quickly. Also, while most seeds sprout well, a small percentage of customers report lower viability. That said, for the price and organic certification, these seeds offer solid value for dedicated sprouters.

Overall, Food to Live Organic Broccoli Seeds are a reliable choice for home sprouting. They deliver nutritional benefits, convenience, and good yield when handled correctly. If you are willing to learn the sprouting process, this bulk bag is a cost-effective way to enjoy fresh, antioxidant-rich greens all year.

Specifications

Product Dimensions: 2 x 4 x 6 inches; 1.5 Pounds
UPC: 661094952356
Manufacturer: Food to Live
ASIN: B07GXL4TY2
Units: 4.0 Ounce (note: this may be a packaging error; actual weight is 1.5 lbs)
Best Sellers Rank: #31,945 in Patio, Lawn & Garden; #819 in Vegetable Plants & Seeds

4
Prime Top Rated

Sow Right Seeds Waltham 29 Broccoli Seeds

SowRightSeeds
9.5 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This non-GMO heirloom seed packet delivers reliable germination and vigorous growth. Waltham 29 broccoli boasts drought and cold tolerance, producing 5-6 inch blue-green heads with abundant side shoots. Perfect for home gardeners in zones 3-10 who want fresh, nutritious broccoli from their own plot.
Pros & Cons

Pros

  • Exceptional germination rate: many reviews highlight seeds sprouting within a day or two.
  • Hardy variety: tolerates both drought and cold, making it reliable across many climates.
  • Productive side shoots: after harvesting the main head, you get a second crop of tender florets.
  • Non-GMO heirloom quality: pure, open-pollinated seeds you can save and replant year after year.
  • Sufficient seed count: 750mg packet provides about 200 seeds, enough for several plantings or sharing.

Cons

  • Potential seed mix: one experienced gardener reported about 30% broccoli raab seeds mixed in; quality control may vary.
  • Variable head size: a few users noted smaller than expected heads despite large plants, which could disappoint those expecting grocery-store size.
  • Requires consistent care: like most broccoli, needs regular watering and full sun to thrive; not a set-it-and-forget-it crop.
Detailed Review

The Sow Right Seeds Waltham 29 Broccoli packet brings a classic heirloom variety to home gardeners who want a reliable, productive broccoli. This non-GMO seed packet is ideal for beginners and experienced growers alike, especially those in USDA zones 3 through 10 who face fluctuating weather. With its built-in drought and cold tolerance, Waltham 29 can handle less-than-perfect conditions while still delivering a solid harvest.

The standout feature is germination speed. Multiple reviews confirm seeds sprout in as little as one day, with strong initial growth. Heads typically reach 5-6 inches across, and after you cut the main head, the plant sends out tender side shoots for weeks. That means one planting gives you multiple harvests, which is great value for the price of a single packet. The seeds come in a sturdy, resealable packet with clear instructions on depth, spacing, and care.

On the downside, a single critical review noted around 30% of seeds were actually broccoli raab, and the heads produced were loose and small. While this appears to be an isolated incident, it's worth noting if you rely heavily on a uniform crop. Also, because broccoli is a heavy feeder, you'll need to provide consistent watering and fertile soil to get the best results. Most reviewers, however, report excellent germination and tasty yields.

Overall, the Sow Right Seeds Waltham 29 Broccoli packet offers a dependable way to grow fresh, organic broccoli at home. The seed quality is high, the variety is well-adapted to a range of climates, and the company backs it with a germination guarantee. For gardeners looking for a productive heirloom broccoli that starts strong and keeps producing, this is a solid choice.

Planting Tips

For best results with Waltham 29 Broccoli, start seeds indoors 4-6 weeks before your last frost date or sow directly in the garden when soil temps reach 70-75°F. Plant seeds 1/4 inch deep and space them 4-6 inches apart in full sun. Thin seedlings to 12-16 inches apart once they have true leaves. Keep the soil consistently moist but not waterlogged. Broccoli is a heavy feeder, so amend the soil with compost before planting and side-dress with a balanced fertilizer after the main head forms. Harvest the central head when it is firm and tight, before the flower buds open. Then leave the plant in the ground to produce side shoots for weeks of continuous picking.

5
Prime

Seedboy Organic Non-GMO Sprouting Seeds

Seedboy
9.9 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
This is an 8-ounce bag of organic, non-GMO sprouting seeds from Seedboy, blending broccoli, purple radish, and alfalfa for a nutrient-dense immune boost. It's a top choice for anyone wanting to grow fresh sprouts or microgreens indoors with minimal effort, and the rigorous pathogen testing adds peace of mind.
Pros & Cons

Pros

  • Certified organic and non-GMO with rigorous pathogen testing for safe eating.
  • Fast harvest time of just 5 days makes it easy for beginners and busy people.
  • Versatile for both sprouts and microgreens, giving you two growing options.
  • Compact indoor setup requires only a jar, mesh lid, and water.
  • Immune-boosting blend of broccoli, purple radish, and alfalfa is packed with antioxidants.

Cons

  • The 8-ounce bag may be small for heavy users or those growing for multiple people.
  • Requires daily rinsing 2-3 times, which can be a minor commitment for some.
  • Sprouts can be sensitive to temperature and airflow, so consistency is key for best results.
Detailed Review

The Seedboy Organic Non-GMO Sprouting Seeds Immune System Booster Blend is a thoughtfully crafted mix of broccoli, purple radish, and alfalfa seeds designed for anyone who wants to grow fresh, nutrient-rich greens at home. Whether you have a tiny apartment, a busy schedule, or just a love for crunchy sprouts, this bag makes it simple. It's especially appealing to health-conscious individuals looking to boost their immune system naturally with antioxidants and vitamins from homegrown greens.

What sets this blend apart is Seedboy's commitment to quality. The seeds are USDA Certified Organic by OTCO, non-GMO, and each batch undergoes rigorous microbiome testing to ensure they are free from harmful pathogens. That level of transparency is rare and reassuring. In practice, the seeds germinate reliably and grow quickly, with sprouts ready to harvest in about 5 days. The flavor is mild yet slightly peppery from the radish, making it a versatile addition to salads, sandwiches, smoothies, and more.

Growing is refreshingly easy. You just need a jar, a mesh lid, and water. Soak the seeds for 8-10 hours, rinse them 2-3 times daily, and watch them transform. The instructions are clear and beginner-friendly. If you prefer sweeter, whiter sprouts, you can keep them in darkness until just before harvest. For microgreens, you can grow them in a tray with soil for a heartier texture. The 8-ounce bag yields 8 quarts of sprouts, which translates to about 24 servings, so it offers good value for the price.

One minor drawback is that you need to commit to a daily rinsing routine. If you travel frequently or forget to rinse, the sprouts can spoil. Also, the bag size is modest, so if you're growing for a large family or want a continuous supply, you might need to buy multiple bags. But for most individuals or small households, it's perfectly adequate.

Overall, the Seedboy Immune System Booster Blend delivers on its promise: a safe, organic, and easy way to grow fresh sprouts that support your health. The blend is thoughtfully chosen for its immune-boosting properties, and the rigorous testing gives you confidence in what you're eating. If you're looking for a simple, reliable way to add more living greens to your diet, this is a solid choice.

6
Prime

Food to Live Organic Broccoli Sprouting Seeds 4 oz

FoodtoLive
9.5 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
These organic broccoli seeds from Food to Live let you grow nutrient-dense sprouts at home easily, packing a punch of sulforaphane and vitamins. Many users get great results, but inconsistent germination and mold issues mean you'll need to dial in your sprouting technique.
Pros & Cons

Pros

  • High sulforaphane content compared to mature broccoli
  • Simple sprouting process with minimal equipment
  • Many users report great flavor and fast germination
  • Organic and non-GMO certification adds trust

Cons

  • Germination rate can be inconsistent; some seeds fail to sprout
  • Mold problems reported even with proper rinsing if airflow is poor
  • Seeds are smaller than some other broccoli sprouting seeds, requiring a longer soak
Detailed Review

Food to Live's organic broccoli sprouting seeds are designed for anyone who wants to add a nutritional boost to their meals without a garden. These 4-ounce seeds are meant for growing sprouts or microgreens indoors, using just a jar and mesh lid. The brand promotes healthy eating with organic, non-GMO, vegan, and kosher certifications, and the seeds are particularly valued for their high sulforaphane content - a compound linked to antioxidant and anti-inflammatory benefits.

In practice, most users find these seeds easy to sprout: a tablespoon or two, a daily rinse, and you've got a quart of crunchy sprouts in under a week. The taste is described as sweet and mild, making them a kid-friendly way to eat broccoli. Many reviewers highlight how the seeds produce consistent, fast-growing sprouts that add texture to sandwiches and salads. The long shelf life (years when stored properly) makes buying in bulk practical for frequent sprouters.

That said, not everyone has perfect results. Some customers report a low germination rate - as low as 50% in a few cases - or a tendency for the sprouts to mold quickly even with regular rinsing. The seeds are noted to be smaller than other brands, which might require a longer soak time. These issues may be due to variations in storage, humidity, or technique, but they suggest a learning curve for beginners.

Overall, these seeds offer good value for price-conscious health enthusiasts willing to experiment. If you're new to sprouting, start with a small batch and ensure proper ventilation. For experienced sprouters, they're a reliable option that delivers on the promised nutrients and flavor.

Specifications
AttributeValue
BrandFood to Live
Size4 ounces
Product Dimensions5 x 3 x 1 inches
CertificationsOrganic, Non-GMO, Vegan, Kosher
Best Sellers Rank#819 in Vegetable Plants & Seeds
Customer Rating4.2 out of 5 stars (over 1700 reviews)
7
Prime

Food to Live Broccoli Seeds for Sprouting, 8 oz

FoodtoLive
9.5 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
Food to Live Broccoli Seeds deliver a high germination rate (around 90% or more) and produce tasty, nutritious sprouts packed with sulforaphane, vitamin C, and vitamin A. Ideal for home sprouters seeking a reliable, versatile seed for salads, sandwiches, and smoothies.
Pros & Cons

Pros

  • Excellent germination rate; most users report near 100% success with proper rinsing.
  • Rich in sulforaphane, a compound linked to antioxidant and anti-inflammatory benefits.
  • Easy to grow at home; needs only a jar, water, and daily rinsing.
  • Versatile ingredient that enhances flavor and texture in many dishes.
  • Good value for the quantity; lasts through many sprouting cycles.

Cons

  • Some batches may be inconsistent: a few users experienced mold or poor germination despite correct technique.
  • Not certified organic (non-GMO but not organic); one reviewer questioned pesticide residue.
  • Requires diligent rinsing (every 8-12 hours) to prevent spoilage; less convenient for forgetful users.
  • Seed hulls can be tedious to remove after sprouting, though it's optional.
Detailed Review

Food to Live Broccoli Seeds for Sprouting are a solid choice for anyone wanting to grow fresh, nutrient-packed sprouts at home. Aimed at health-conscious individuals, vegan cooks, and gardening enthusiasts, this 8-ounce bag offers a high germination rate that consistently delivers crunchy, mildly spicy sprouts in less than a week. The seeds are non-GMO, kosher, and free from artificial additives, making them suitable for a wide range of diets.

The standout feature is the sulforaphane content, a compound praised for its antioxidant and potential anticancer properties. User reviews confirm that the sprouts taste great and are easy to incorporate into salads, sandwiches, smoothies, and stir-fries. Many reviewers praised the germination rate, with some reporting 80-98% success. However, a few negative experiences highlight that results can vary: some users encountered mold or poor sprouting, often tied to storage or sprouting method rather than seed quality. Proper rinsing every 8-12 hours and good airflow are crucial.

The seeds come in a resealable bag and are lightweight. While not organic, Food to Live markets them as non-GMO, which appeals to many buyers. The product holds up well in storage for up to three years. For the price, it offers excellent value compared to buying pre-sprouted greens. Overall, this is a dependable option for home sprouting, though beginners should follow the included instructions closely to avoid pitfalls.

If you are new to sprouting, start with small batches to refine your technique. Most users find success quickly, and the health benefits are well worth the minimal effort. Just be aware that occasional inconsistency may require trying a different bag or method.

Final verdict: Food to Live Broccoli Seeds are a practical, nutritious, and cost-effective way to enjoy fresh sprouts daily. With proper care, they deliver reliable results and a tasty boost to your meals.

8
Prime

Axel's Garden Seeds Organic Broccoli Seeds

Axel's Garden Seeds
9.5 /10
TYG Score
TYG Score is calculated based on product ratings, reviews, and sales performance to help you make informed purchasing decisions. Learn more ›
These organic heirloom Di Cicco broccoli seeds from Axel's Garden Seeds offer a high germination rate and come with clear planting instructions, making them a reliable choice for home gardeners looking to grow fresh broccoli.
Pros & Cons

Pros

  • High germination rate reported by many customers
  • Organic and non-GMO, suitable for health-conscious gardeners
  • Easy to follow instructions included on the packet
  • Large quantity of seeds for the price
  • Heirloom variety with a long history of reliable performance

Cons

  • Some customers experienced no germination, possibly due to storage or planting conditions
  • Outdoor planting may require protection from pests like woodchucks
  • Seeds are for outdoor use only, not ideal for indoor hydroponic setups without careful adaptation
Detailed Review

Axel's Garden Seeds Organic Broccoli Seeds offer home gardeners a chance to grow a classic Italian heirloom variety, Di Cicco, which has been cultivated since 1890. This packet contains 250 organic, non-GMO seeds, making it a solid choice for anyone looking to start a vegetable garden or expand their existing plot. The seeds are intended for outdoor planting and come with straightforward instructions that even beginners can follow.

In terms of performance, customer feedback highlights a high germination rate, with many reporting success rates above 95%. The seeds sprout quickly when given proper moisture and warmth, and the plants reach maturity in about 70 days. The Di Cicco variety produces multiple side shoots after the main head is harvested, extending the harvest period. However, a few users noted no germination, which could be due to overwatering, poor soil, or storage issues before planting.

The packaging is practical and informative. Each seed packet is 3 by 4.5 inches with a full-color illustration on the front and detailed growing instructions on the back. The instructions cover planting depth, spacing, and care, which is helpful for new gardeners. The seeds are hand-packed and intended for the current and following seasons, ensuring freshness.

A potential drawback is that these seeds are designed for outdoor gardens, so indoor growers may need to adapt conditions carefully. Additionally, like any outdoor crop, broccoli can attract pests such as woodchucks or cabbage worms, as mentioned in some reviews. Gardeners should plan for protective measures like fencing or row covers.

Overall, Axel's Garden Seeds Organic Broccoli Seeds deliver on their promise of a reliable, heirloom variety with good germination rates. They are a great value for the price and come with clear guidance. If you are a home gardener wanting to grow your own organic broccoli, this packet is a worthwhile investment. Just be mindful of your local growing conditions and pests.

Frequently Asked Questions About Planting Broccoli

1. When is the best time to plant broccoli in spring?
In most regions, start seeds indoors 6-8 weeks before the last frost date. Transplant seedlings outdoors 2-3 weeks before the last frost, when soil temperatures reach at least 60°F. This timing gives broccoli a cool start and plenty of time to mature before summer heat arrives.

2. Can I plant broccoli in the fall?
Yes, fall planting often yields excellent results. Direct sow seeds in late summer, about 85-100 days before the first fall frost. The cooler autumn temperatures help heads develop slowly, enhancing flavor and texture. This window is especially good for gardeners in warm climates where spring heat comes too quickly.

3. What happens if I plant broccoli too late?
Planting too late in spring exposes broccoli to high temperatures, which trigger bolting. Bolted plants produce small, bitter heads that open into flowers. Stems become woody and leaves lose tenderness. To avoid this, aim for maturity before average daily highs exceed 75°F. For low-light indoor setups, consider best grow light for a 3×5 grow tent to maintain growth.

4. Should I start broccoli seeds indoors or direct sow?
Both methods work, but starting indoors gives you more control over early growth. Use seed-starting mix, keep temperatures around 70°F, and provide strong light. Harden off seedlings gradually before transplanting. Direct sowing works best in fall plantings when soil is already warm and consistent moisture is easier to maintain.

5. How do soil conditions affect broccoli planting time?
Broccoli needs fertile, well-drained soil with a pH between 6.0 and 7.0. Cold, soggy soil delays germination and encourages root rot. Warm, loose soil speeds up establishment. Adding compost before planting improves nutrients and drainage. For more on soil care, visit the Garden Soil category.