'Sweet Valentine' romaine lettuce Seeds

Name: 'Sweet Valentine' romaine lettuce Seeds
Brand: Gaia
Price: 4.99 CAD
Availability: InStock

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Ecologically grown, open-pollinated heirloom seeds Asteraceae

Gaia

Lactuca sativa

Common nameSweet Valentine romaine lettuce

FamilyAsteraceae

GenusLactuca

Speciessativa

CultivarSweet Valentine

TypeEcologically grown, open-pollinated heirloom seeds

Botanical nameLactuca sativa

Reproducible seedsYes

Heirloom varietytrue

Quantity per packetApproximately 100 seeds

'Sweet Valentine' romaine lettuce Seeds (Lactuca sativa). This open-pollinated heirloom forms upright heads of crisp tender leaves with sweet flavour. Gaia highlights its good heat tolerance, which is useful when summer temperatures challenge many lettuces. Its vertical habit simplifies care, improves access to leaves, and suits garden beds, raised plots, and large containers. Leaves are well suited to salads, sandwiches, wraps, and fresh garnishes. The packet contains 100 organic seeds; Gaia does not identify this product as certified organic. Sweet Valentine combines romaine texture with greater reliability during warmer periods. For practical seed starting, growing from seed succeeds best when the verified product depth, moisture and temperature guidance is followed.

Direct sow as soon as soil can be worked, 1/4 to 1/2 inch deep, or start seed indoors three to four weeks before planting out. Maintain the medium at 12 to 21°C, optimally 16 to 18°C; germination generally takes 7 to 10 days. Although Sweet Valentine tolerates heat better during growth, most lettuces germinate poorly above 25°C. Space plants approximately 6 inches apart and rows 12 to 18 inches apart, or up to 24 inches where a wider irrigation or harvest aisle is needed. Thin carefully so upright heads have light and airflow. Use the product details as a clear guide on how to start seeds while keeping the growing medium evenly moist, never saturated. For indoor seed starting, count back from local conditions and frost dates to decide when to start indoor seeds.

Grow Sweet Valentine in sun or light partial shade and fertile, cool, well-drained soil. Maintain even moisture to keep leaves tender and limit bitterness. Maturity occurs in 60 to 75 days. Upright heads reach approximately 8 to 12 inches in both height and width and tolerate temperatures near −7°C. Harvest outer leaves as needed or cut the entire romaine head. Gaia indicates that flavour is especially pleasant after a few cold nights. Keep clean dry leaves refrigerated and use them promptly for crisp texture. Succession sowings can extend harvests from spring into early autumn.

In the garden

Exposure: Full sun to partial shade
Life cycle: Annual
Hardiness: Cold tolerance down to approximately −7°C

Sowing guide

Sowing & germination

Sowing depth

6 to 13 mm (1/4 to 1/2 in) when direct sown

Spacing / density

15 cm (6 in) between plants; 30 to 46 cm (12 to 18 in) between rows, or 46 to 61 cm (18 to 24 in) with a wider aisle

Germination temperature

12 to 21 °C (53.6 to 69.8 °F); optimum 16 to 18 °C (60.8 to 64.4 °F); germination is often reduced above 25 °C (77 °F).

Germination time

7 to 10 days

Sowing period

Direct sow as soon as soil can be worked, or start indoors three to four weeks before planting out. Repeat sowings during cool weather.

Propagation

Seed propagation; open-pollinated variety

Growing method

For Sweet Valentine romaine lettuce, follow these sowing and growing guidelines for the variety. Direct sow 1/4–1/2 inch deep as soon as soil can be worked, or start indoors three to four weeks before planting out. Maintain 12–21°C, optimally 16–18°C, and even moisture. Avoid temperatures above 25°C during germination. Thin to 6 inches, then harden indoor-started seedlings before placing them in cool fertile soil. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. This seed starting sequence supports reliable growing from seed while preserving the product-specific depth and temperature facts.

Soil and care

Soil & care

Soil pH

Approximately 6.0 to 7.0

Minimum temperature

Approximately −7°C

Care level

Easy

Watering

Maintain even moisture without saturating the soil to keep leaves tender and less bitter. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots.

Soil type

Fertile, cool, loose, well-drained soil rich in organic matter Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots.

Fertilization

Incorporate mature compost before sowing; a light balanced feeding is sufficient when soil is poor. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots.

Seasonal care

For Sweet Valentine romaine lettuce, adjust seasonal care to the plant’s actual growth cycle. Weed regularly and water at soil level to keep the ground cool. Thin early to improve airflow. Harvest outer leaves or loose heads before they become bitter. During hot weather, provide light afternoon shade and renew sowings in late summer. Remove damaged leaves and check beneath low foliage for slugs. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. A light mulch can reduce splashing and moisture swings after the soil has warmed and plants are established. Inspect foliage, stems, and leaf undersides regularly so stress or pests can be addressed early.

Container growing

Growing Sweet Valentine romaine lettuce in a container requires suitable volume, drainage, and exposure. 5 to 10 L per plant with free drainage. Match the container to the plant's development and provide free drainage from planting onward. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. A light mulch can reduce splashing and moisture swings after the soil has warmed and plants are established.

Size, flowering & harvest

Mature height

20 to 30 cm (8 to 12 in)

Foliage color

Dark green

Foliage type

Crisp tender romaine leaves

Growth rate

Moderate

Growth habit

Rosette or compact clump

Edible parts

Leaves, loose heads, and flowers

Harvest

Harvest outer leaves as needed or cut the entire romaine head after 60 to 75 days. Flavour is especially pleasant after a few cool nights.

Garden associations

Companion plants & uses

Companion plants

Gaia traditionally suggests alliums, radish, marigold, broccoli, beans, beet, carrot, nasturtium, dill, corn, cucurbits, cilantro, and strawberries. No pairing guarantees improved yield. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Adapt the layout to the mature size of neighbouring plants.

Plants to avoid

Gaia traditionally recommends separating cabbage, Brussels sprouts, celery, and parsley; prioritize spacing, rotation, and airflow.

Garden use

In the garden, place Sweet Valentine romaine lettuce according to its habit, vigour, and access for harvest. Harvest anytime but flavour is best in fall after a few cold nights. Alliums, Radish, Marigold, Broccoli, Beans, Beet, Carrot, Nasturtium, Dill, Corn, Cucurbits, Cilantro, Strawberries. The packet contains 100 seeds. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume.

Recipe idea

From garden to table

For four servings with Sweet Valentine romaine lettuce, harvest about 300 g of leaves or tender stems at the recommended stage. Rinse thoroughly under potable water, drain, and remove damaged sections. Cut the crop into even pieces. Warm 15 ml of oil in a large skillet, add firmer stems first, then the leaves, and cook for a few minutes to the desired texture. Add 15 ml of lemon juice or mild vinegar, a small pinch of salt, and pepper. Serve with a cooked grain, pulses, or potatoes. Young leaves may also be used raw when that use is confirmed for the exact plant. Refrigerate leftovers in a closed container within two hours and use them promptly. Serve promptly to preserve the texture and aromas that distinguish this harvest. Taste before adding more salt so the variety’s own character remains at the centre of the dish. Use a clean board and utensils, then refrigerate promptly any portion that will not be served immediately. This straightforward preparation lets you adjust seasoning to the harvest’s maturity and natural flavour.

Frequently asked questions

How many 'Sweet Valentine' romaine lettuce seeds are in the packet?

For Sweet Valentine romaine lettuce, the packet information states: Approximately 100 seeds. This wording preserves the commercial approximation when one is provided and helps plan the number of containers or the length of the row without turning an estimate into a guaranteed count. Keep the packet closed in a cool, dry, dark place until sowing time. Keep the label with the seedlings so the variety remains correctly identified throughout the season. Use clean containers and write the sowing date on a water-resistant label. Avoid exposing unused seed to moisture or large temperature swings.

How should I start 'Sweet Valentine' romaine lettuce seeds in Canada?

For Sweet Valentine romaine lettuce, the stated sowing period is the detailed directions in the product record. The recommended method is Seed propagation; open-pollinated variety, at a depth of 6 to 13 mm (1/4 to 1/2 in) when direct sown. Follow these product-specific directions and adjust timing to the average last-frost date in your area. Moisten the growing medium before placing the seed so the first watering does not displace it. Label every container and maintain even moisture without allowing standing water. Move seedlings into bright light as soon as they emerge to encourage balanced growth. Thin carefully when several seedlings compete for the same space. For seed starting, label the cultivar and use the stated sowing depth instead of a generic estimate.

How long do 'Sweet Valentine' romaine lettuce seeds take to germinate?

For Sweet Valentine romaine lettuce, the stated germination period is 7 to 10 days, with a germination temperature of 12 to 21°C; optimal 16 to 18°C; germination often reduced above 25°C. Keep these conditions as steady as practical while allowing excess water to drain away. The temperature of the growing medium matters more than the surrounding air during this stage. Check moisture below the surface before watering again and avoid saturating the medium. Good air circulation helps young plants remain vigorous after emergence. Wait until the normal germination window has passed before assuming a seed will not emerge. When growing from seed, keep conditions stable for the full stated germination window before disturbing the mix.

Where should I grow 'Sweet Valentine' romaine lettuce in the garden?

For Sweet Valentine romaine lettuce, the recommended exposure is Full sun to partial shade. The stated spacing guideline is the detailed directions in the product record. For container growing, the product record recommends: 5 to 10 L per plant with free drainage. Allow for the mature habit so neighbouring plants do not restrict light or access for harvest. Choose a site that is easy to water and leave enough room for air to circulate around the foliage. In a container, make sure several holes allow excess water to drain freely. A light mulch can steady moisture after the soil has warmed and plants are established.

When and how should I harvest 'Sweet Valentine' romaine lettuce?

For Sweet Valentine romaine lettuce, the confirmed edible parts are: Leaves, loose heads, and flowers. Harvest them at the stage stated in the product record, then sort the crop before preparation. Use only the parts correctly identified as edible for this plant. Use a clean tool and handle the harvest carefully to avoid unnecessary injury to the plant. Harvest in dry weather when practical and remove damaged portions promptly. Wash only the parts intended for the kitchen and refrigerate perishable produce promptly. Never eat a plant part whose identity or edibility is uncertain.