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Once harvested, Romaine should be stored in the refrigerators crisper drawer.

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Plant two to three months before the first frost, if planting in the fall.

Green Romain lettuce in garden

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Spacing and Depth

Space seeds 12 inches apart and at a depth of 14 inch.

For best results, choose a location that receives no less than 6 hours of sunlight a day.

Its best to amend your soil with compost to provide the best growing conditions.

Water

The plant will require regular watering, particularly when it hasnt received rain.

Mulch will also aid in keeping away weeds that could jeopardize the soils water supply and nutrients.

If youre planting in the spring, avoid planting when there is still the threat of frost.

Fertilizer

The best time to fertilize Romaine lettuce is when its in a growth period.

Pollination

Romaine lettuce, like other members of theAsteraceae,is a self-pollinator.

Allow the seed heads to dry for a few days in a paper bag with open air flow.

Once dry, store them for the next planting season in a cool, dark, and dry place.

Harvesting

Romaine cantypically be harvestedsomewhere between 60-80 days after planting from seed.

By then, the plant can range anywhere from 8 to 12 inches tall.

When the plant is about 8 to 12 inches tall and has dark green foliage it’stime to harvest.

Natural materials are best for growing Romaine.

Opt for outdoor-grade options like terracotta, steel, or cedar.

Be sure to water thoroughly after both planting and thinning.

When overwintering, its typically best to harvest before the plant reaches full maturity.

Pay attention to the proper spacing and care and your plants should thrive with minimal maintenance.

Yes, Romaine lettuce can be grown in water to make it harvest leaves or seeds for future planting.

It will not grow an entire new head of Romaine though.

The fluffy orbs it produces will hold seeds that can be dried and stored for future planting seasons.