Milkmaid

Nasturtium

50d to harvest

Fragrant, honeyed blossoms open in a riot of warm apricot-orange and buttery cream, each petal edged like a satin ribbon—an instant garden perfume. Milkmaid nasturtium bears tender, succulent leaves with a gentle, peppery snap and a clean, milky sweetness that shines in fresh bouquets and vibrant garnishes. Grow it for a long season of nonstop color and a lush, trailing habit that drapes beautifully over containers, borders, and trellises.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 10th
Transplant / Sow Outdoors	Apr 10th
Harvest Begins	May 30th
Harvest Ends	Oct 28th

Crop Details

Trait	Value
Days to Maturity	50
Sun Requirements	Full Sun
Growth Habit	Spreading
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	50
Min Night Temp (°F)	40
Harden Off (days)	5

Frequently Asked Questions

What pest or disease commonly affects Tropaeolum majus (milkmaid/nasturtium), and how can I treat it?

Watch for aphids and caterpillars, which often cluster on the tender shoots and buds of Tropaeolum majus. Spray aphids off with a strong stream of water and use insecticidal soap for repeat outbreaks; for chewing caterpillars, hand-pick in the evening and treat with Bt if needed. In humid conditions, keep airflow good and remove any yellowing leaves early to reduce gray mold and leaf spot.

How often should I water Tropaeolum majus during the main growing phase?

Water deeply only when the top 1–2 inches of soil feel dry, because Tropaeolum majus performs best with evenly moist but not waterlogged soil. During active flowering, aim for about 1 inch of water per week total (from rainfall plus irrigation), adjusting up or down based on heat and container vs. in-ground conditions. Avoid frequent light watering, which can keep foliage wet and invite leaf spot.

How do I know when Tropaeolum majus is ready to harvest?

Harvest in about 50 days from sowing when the plants have formed sturdy stems and the flowers and leaves are fully developed and still tender. Pick flowers regularly once they open, since frequent harvesting encourages more blooms. If you’re harvesting seeds, wait until the seeds have turned mottled and firm on the plant, then dry them on the stem before storing.