Window Box Roma

Tomato

70d to harvest

Sun-warmed sweetness bursts from Window Box Roma’s petite cherry fruits—bright, true-red globes with a glossy skin that catches the light like lacquer. The flesh is firm yet juicy, with a pleasantly dense, Roma-style bite that shines in thick, flavorful preparations. Grow it for abundant harvests on a compact, container-friendly plant, then enjoy its bold tomato character in sauces, roasting, and preserves where concentrated flavor matters most.

Crop Dates

Milestone	Date
Start Indoors	Mar 27th
Last Frost	May 15th
Transplant / Sow Outdoors	Jul 10th
Harvest Begins	Sep 18th
Harvest Ends	Sep 1st

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Determinate
Support Needed	Cage
Planting Depth	Deep
Germination Temp (°F)	75
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	8

Frequently Asked Questions

What pest or disease issue is most common on Solanum lycopersicum (tomatoes) in window boxes, and how can I control it?

In window boxes, tomatoes (Solanum lycopersicum) commonly get early blight (Alternaria) and leaf spot, especially when leaves stay wet. Remove infected lower leaves as soon as you see yellowing/brown spots, water at the soil line (not on foliage), and improve airflow by spacing plants and keeping the box from staying humid. If it keeps spreading, treat with a labeled tomato fungicide and follow the product’s interval for repeat sprays.

How often should I water Solanum lycopersicum during the main growing phase in a window box?

During fruiting (roughly after flowering begins through harvest), keep the potting mix evenly moist but not waterlogged—aim for watering whenever the top 1 inch of mix feels dry. Window boxes dry out fast in full sun, so many home gardeners end up watering daily in hot weather, but less often in cooler periods. Water thoroughly until excess drains out, then empty the saucer so roots of this Solanaceae don’t sit in water.

How do I know when my Solanum lycopersicum is ready to harvest?

Harvest when fruits are fully colored for their variety and show a slight give when gently squeezed—typically around 70 days to maturity. Pick frequently because tomatoes continue producing; if you wait for every fruit to ripen fully, later clusters slow down. For best flavor, harvest at peak ripeness rather than letting them over-soften on the plant.