Thompson & Morgan Lettuce Great Lakes - Heritage 1 Seed Packet
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Product Information
Full details
This Thompson & Morgan Lettuce 'Great Lakes' seed packet is for home gardeners seeking a reliable, fast-growing iceberg lettuce variety for summer harvests. Its key benefit is its resistance to bolting, ensuring crisp leaves even in warmer weather. A potential caveat is the need for consistent watering and protection from pests. This variety produces medium to large hearts with bright green, crisp leaves, ready in approximately 90 days.
All features
| Model Part Number | 36880 |
|---|---|
| Brand | Thompson & Morgan |
Extended Product Information
FAQs
When is the best time to sow Lettuce 'Great Lakes' seeds?
You can direct sow Lettuce 'Great Lakes' seeds outdoors from March through August for a continuous harvest throughout the growing season.
How long does it take for the lettuce to be ready for harvest?
This variety typically emerges and is ready for harvest in approximately 90 days from sowing.
Why is consistent watering so important for this lettuce?
Consistent watering is crucial to prevent the lettuce from bolting, especially during dry weather and in the two weeks before harvest. It helps maintain crispness and prevents bitterness.
Can I grow this lettuce in containers?
Yes, this variety can be grown in containers, provided they are deep enough to accommodate the root system and offer adequate sunlight and consistent moisture.
What does 'bolting' mean for lettuce?
Bolting refers to the plant prematurely sending up a flower stalk, which typically makes the leaves tough and bitter, signaling the end of its productive leafy growth.
How should I protect the seedlings from pests?
Covering young seedlings with protective netting or fleece is recommended to deter common garden pests like birds and insects.
What is the difference between sowing and thinning?
Sowing is the act of planting the seeds. Thinning is the process of removing weaker seedlings after they have germinated to give the remaining plants enough space to grow to their full potential.
Troubleshooting
Lettuce bolts prematurely (flowers)
Ensure consistent watering, especially during hot weather and before harvest. Avoid stressing the plant with dry periods. Provide some afternoon shade in extremely hot climates if possible.
Pest damage (birds, insects)
Use netting or fleece to cover seedlings and young plants. Inspect regularly for signs of infestation and remove pests manually if feasible.
Poor head formation or small heads
Ensure adequate spacing (30cm apart), fertile soil, and consistent moisture. Overcrowding or nutrient deficiency can lead to smaller heads.
Leaves are bitter
This is often a sign of bolting or heat stress. Ensure consistent watering and harvest before the plant fully bolts. Adequate nutrients and avoiding dry spells are key.
Pros and Cons
Pros
- Resistant to bolting during summer heat.
- Quick maturity, ready in about 90 days.
- Produces crisp, fresh leaves.
- Suitable for successive planting for a continuous harvest.
- Reliable heritage variety for home gardeners.
Cons
- Requires consistent watering to prevent bolting.
- May need protection from birds and insects.
- Best results in fertile, moist soil.
- Harvested heads may vary in size depending on growing conditions.
Setup, Compatibility & Care
Sowing:
Direct sow seeds outdoors from March to August. Prepare a fertile, moist soil bed and rake it to a fine tilth. Sow seeds thinly about 1cm (1/2 inch) deep in drills spaced 30cm (12 inches) apart.
Thinning & Spacing:
Once seedlings are large enough to handle, thin them to stand 30cm (12 inches) apart. This spacing allows each plant to develop a substantial heart.
Protection:
Cover newly sown seeds or young seedlings with protective netting or fleece to deter birds and insects.
Watering:
Water lettuce frequently. This is particularly critical during dry weather and the two weeks prior to harvesting to prevent the plants from bolting. Applying a thick mulch around plants helps retain soil moisture.
Weeding:
Regularly hoe between plants to keep weeds from competing for nutrients and water.
Harvesting:
Harvest lettuce when required by pulling up the entire plant. Trim the stem with a knife. For a continuous supply, make regular sowings throughout the summer.
Compatibility:
Suitable for sowing in vegetable patches, raised beds, or containers with adequate depth. Prefers sun or semi-shade.