How to Grow Dwarf Landmark Yellow

Dwarf Landmark Yellow

Solanum lycopersicum 'Dwarf Landmark Yellow'

vegetable

Dwarf Landmark Yellow is a compact determinate tomato variety producing bright yellow fruits with excellent flavor and disease resistance. This dwarf cultivar reaches only 2-3 feet tall, making it ideal for containers and small spaces while still delivering substantial yields. The variety combines the vigor of the Landmark breeding line with cheerful yellow coloring and reliable production.

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Example Dwarf Landmark Yellow timeline · Pittsburgh, PA (Zone 6b)

Plant Dwarf Landmark Yellow
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Dwarf Landmark Yellow
Around Jun 24

≈ 68 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Dwarf Landmark Yellow dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; 8+ hours preferred for maximum fruiting

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Water: Consistent moisture, 1-2 inches per week; water deeply at soil level to avoid fungal disease; maintain even soil moisture to prevent blossom end rot and fruit cracking

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Spacing: 18 inches

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Days to maturity: 68-75 days from transplant to first ripe fruit

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Planting depth: Seed: 0.25 inches deep; Transplant: bury stem up to first true leaves (roots will form along buried stem)

Soil

Type: Well-draining loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost aged manure balanced fertilizer (10-10-10) lime if pH below 6.0

Growing Zones

Find your zone →

Thrives in zones 5-9; can be grown in zones 3-4 as annuals with season extension; zones 10+ may experience heat stress

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

Seedling

2-3 weeks

Tiny seedlings with cotyledons unfurl; first true leaves appear within 7-10 days

Provide bright light 14-16 hours daily under grow lights; keep soil consistently moist but not waterlogged; maintain 70-75°F temperature; thin to strongest seedling if multiple germinate in one cell

Vegetative Growth

3-4 weeks before planting out

Plant develops multiple sets of true leaves; stems thicken and become more robust; compact dwarf habit becomes evident

Gradually harden off seedlings by exposing to outdoor conditions for increasing periods; fertilize with half-strength balanced fertilizer weekly; ensure strong light to prevent legginess; transplant to larger containers as needed

Establishment & Flowering

2-3 weeks after planting

Plant produces first flower clusters; growth habit becomes fully compact and bushy; root system establishes in garden soil

Provide sturdy support or cage early as dwarf variety still produces heavy fruit; mulch around base to retain moisture and regulate soil temperature; begin regular watering schedule; apply balanced fertilizer every 2-3 weeks

Fruiting

3-4 weeks as fruits reach mature size

Yellow fruits develop and swell; plant may produce multiple clusters simultaneously; foliage remains vigorous and compact

Maintain consistent watering to prevent splitting and blossom end rot; provide calcium (via bone meal or lime if needed); prune only sparse suckers due to determinate nature; deadhead spent flowers to encourage new fruit set; monitor for early blight

Harvest & Production

4-6 weeks until frost or plant decline

Fruits mature to bright golden-yellow color; plant continues producing in waves as determinate type; late-season fruits may take longer to ripen

Harvest at full yellow color for best flavor; ripe fruits yield slightly to gentle pressure; continue consistent watering through final harvest; remove diseased leaves promptly; reduce water slightly in final 2 weeks to concentrate flavors

Companion Planting

Plan your garden →

Plant with:

Basil Parsley Marigold Carrot Onion Garlic Lettuce Spinach Nasturtium Borage

Avoid planting near:

Brassicas (cabbage, broccoli, cauliflower) Fennel Dill Potato Walnut trees

Common Pests

Hand-pick large caterpillars; allow parasitoid wasps (look for white cocoons); use Bacillus thuringiensis (Bt) spray if infestation is heavy
Use insecticidal soap spray; reflective mulch around base; yellow sticky traps; maintain good air circulation
Remove lower leaves as they age; avoid overhead watering; mulch to prevent soil splash; apply copper or sulfur-based fungicide at first sign of brown spots on lower leaves; plant is moderately resistant via Landmark genetics
Increase humidity by misting; strong water spray dislodges mites; neem oil or insecticidal soap; avoid overhead watering in evening to prevent fungal issues
Maintain consistent soil moisture; ensure adequate calcium in soil; mulch to regulate moisture; avoid excessive nitrogen fertilizer

Uses

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Fresh eating and salads

Culinary

Yellow tomatoes have a mild, sweet flavor with lower acidity than red varieties, making them excellent for fresh eating, slicing into salads, and serving raw. Their golden color adds visual appeal to summer meals. [source]

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Sauces and preserves

Culinary

While not traditional red sauce material, yellow tomatoes produce a mild, delicate sauce perfect for light pasta dishes, soups, and jams. They make beautiful, subtle yellow salsas and chutneys. [source]

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Container gardening and small-space growing

Culinary

The dwarf 2-3 foot stature makes this variety perfect for patio containers, balconies, and urban gardens where space is limited. Compact growth doesn't compromise on yields for fresh tomatoes. [source]

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Ornamental edible gardening

Household

Bright yellow fruits on compact plants make Dwarf Landmark Yellow suitable for decorative edible landscapes, potager gardens, and mixed ornamental-vegetable beds where aesthetics matter. [source]

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Antioxidant-rich food

Medicinal

Yellow tomatoes contain carotenoids and flavonoids with antioxidant properties supporting overall health. The mild flavor and natural sweetness make them an easy way to include beneficial compounds in diet. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Pick fruits when fully golden-yellow, not orange; they will be sweeter and have developed full flavor at this stage. Gently twist and pull, or use pruners to avoid damaging the vine. Morning harvest when fruits are coolest extends shelf life. Dwarf determinate types produce most fruit within 2-3 week window, so harvest frequently to encourage continued production. Fruits ripen in waves throughout season.

Fun Facts

🌱 Yellow tomatoes were nearly lost to extinction in the early 20th century when red varieties became commercially dominant; heritage seed savers preserved many yellow cultivars for future generations.
🌱 The 'Landmark' breeding line is known for superior disease resistance, particularly to early blight and verticillium wilt, making it an excellent choice for disease-prone regions.
🌱 Yellow tomatoes have less acidity than red varieties (pH around 4.8-5.0 vs. 4.2-4.4), making them a good option for people with acid reflux or sensitive stomachs.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Cultivar Deadhead Full Sun Mulch Sucker Transplant True Leaves

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