What are the sun requirements for Solanum lycopersicum 'Iron Lady'?

Solanum lycopersicum 'Iron Lady' is a compact, determinate tomato cultivar renowned for its exceptional disease resistance and reliable productivity. This robust variety produces sturdy, well-branched plants that typically reach 3-4 feet in height with a dense, bushy growth habit. The compound leaves are deeply lobed and bright green, providing excellent coverage for the developing fruit clusters. Solanum lycopersicum 'Iron Lady' is particularly valued for its resistance to multiple common tomato diseases including verticillium wilt, fusarium wilt, and tobacco mosaic virus. The variety produces clusters of medium-sized, globe-shaped tomatoes with smooth, firm skin and excellent flavor, making it an ideal choice for both home gardeners and commercial growers seeking dependable yields in challenging growing conditions.

Native Range

Solanum lycopersicum is native to western South America, particularly the coastal regions of Peru, Ecuador, and northern Chile, where wild ancestors still grow naturally in the Andes Mountains and coastal valleys.

Suggested Uses

vegetable gardens, container growing, raised beds, greenhouse cultivation, market gardening

How to Identify

Solanum lycopersicum 'Iron Lady' can be identified by its compact, determinate growth habit with sturdy stems and dense foliage coverage. The variety displays characteristic compound tomato leaves with serrated leaflets and produces small yellow star-shaped flowers in clusters. Key identifying features include its robust, disease-resistant appearance, medium-sized globe-shaped fruits, and determinate growth pattern that stops at a predetermined height rather than continuing to vine indefinitely.

Appearance

Size & Dimensions

Height3' - 4'

Width/Spread2' - 3'

Colors

Flower Colors

yellow

Foliage Colors

green

Bloom Information

Bloom Period

Summer Fall

summer through early fall

Detailed Descriptions

Foliage Description

bright green

Growing Conditions

Sun Requirements

Full Sun

• Full Sun: 6+ hours of direct sunlight

• Partial Shade: 3-6 hours of direct sunlight

• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.0 - 6.8(Neutral)

357912

Drainageaverage

Water & Climate

Water Needs

moderate to high

Frost Tolerance

tender

Time to Maturity

75-85 days

Care & Maintenance

Care Guide

Solanum lycopersicum 'Iron Lady' requires consistent watering, providing 1-2 inches per week through deep, regular irrigation at soil level to prevent foliar diseases. Apply a balanced fertilizer at planting, then switch to a lower nitrogen, higher phosphorus and potassium fertilizer once flowering begins to promote fruit development. Mulch around plants to retain moisture and suppress weeds, and provide sturdy support with tomato cages or stakes as fruit develops. Monitor regularly for pests such as hornworms and aphids, and maintain good air circulation around plants.

Pruning

Solanum lycopersicum 'Iron Lady' requires minimal pruning due to its determinate growth habit, but remove suckers that develop between the main stem and branches to focus energy on fruit production. Remove lower leaves that touch the ground to prevent soil-borne diseases, and prune any damaged or diseased foliage immediately. As a determinate variety, avoid topping the main growing tip, as this will reduce overall yield.

Maintenance Level

moderate

Container Growing

✓ Suitable for container growing

⚠️ Toxicity Warning

The green parts of Solanum lycopersicum 'Iron Lady' including leaves, stems, and unripe green fruits contain solanine and other glycoalkaloids that are toxic to humans and pets if consumed in large quantities. Only ripe, red fruits should be consumed, and plant debris should be kept away from livestock and pets.