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Lettuce Seeds, Henderson's Black Seeded Simpson
Description
(Lactuca sativa) Leaf. One of the best-tasting loose leaf lettuce varieties available. It was first introduced in 1879 by “Peter Henderson & Co.” of New York. This light green, crumpled lettuce has remained a favorite of gardeners and market growers ever since. Sweet and tender!
- 45-60 days to maturity
- 4-8 hours of sun
- Sprouts in 7-10 days
- Ideal Temperature: 60-80 degrees F
- Seed Depth: 1/4"
- Plant Spacing: 8"
- Frost Hardy: Yes
Growing Tips, Tricks and FAQs
Growing Tips
This variety thrives in 60-80 F weather and is quite resilient, making it a popular choice among gardeners. For optimal growth, plant it in full sun to partial shade. It requires well-draining soil enriched with organic matter. Consistent moisture is essential, but avoid waterlogging the soil to prevent root diseases. Adding a balanced organic fertilizer or compost at planting time and supplementing with a liquid fertilizer every few weeks will promote healthy growth.
When to Grow
This lettuce can be sown directly into the garden as soon as the soil can be worked in early spring. It can also be sown in fall. In areas with mild winters, it can be grown almost year-round. Black Seeded Simpson lettuce is hardy in USDA zones 2a to 11b and matures in around 45-60 days.
How to Sow and Plant
Sow seeds 1/4 inch deep in rows that are 12-18 inches apart. Sow in thick bands for baby greens or space 8 inches apart for head lettuce. If starting indoors, sow seeds in trays about 4 weeks before the last frost and transplant outdoors after hardening off the seedlings.
How to Grow
Keep the soil consistently moist but not waterlogged, using a gentle watering method like drip irrigation or a watering can with a fine rose. Mulching around the plants can help retain soil moisture and reduce weed growth. Regular hand weeding is recommended to prevent competition for nutrients and water. Providing partial shade during the hottest part of the day in summer can help prevent bolting. Black Seeded Simpson is more heat-resistant than many other lettuce varieties but still prefers cooler conditions.
How to Save
- Lettuce is a self-pollinating annual, making it an easy crop for seed saving.
- Do not harvest plants. Allow them to send up flower stalks.
- Once seed heads are dried and have turned a yellowish-tan color, cut the entire stalk and place in a bag.
- Crush the seed heads in the bag and separate the chaff.
- Store in an airtight container in the refrigerator for up to 4 years.
FAQ
How often should I water Black Seeded Simpson lettuce?
Water regularly to keep the soil moist but not soggy, especially during dry periods. Consistent moisture is crucial for tender leaves and preventing bitterness.
Can Black Seeded Simpson lettuce be grown in containers?
Yes, lettuce as such grows well in containers. Use a pot that is at least 6 inches deep with good drainage. Ensure the container is placed in a location that receives adequate sunlight.
How do I prevent bolting for Black Seeded Simpson lettuce?
Provide consistent moisture, mulch to keep the soil cool, and offer partial shade during the hottest part of the day. Avoid letting the soil dry out completely, as this can stress the plants and trigger bolting.
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