Alaska Mix

Nasturtium

Zone 5a Save Garden

🌱 30d to harvest Upright

A peppery burst of color—tender nasturtium blooms in a lively Alaska Mix—arrive with a bright, jewel-like charm and a zingy, gard…

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	May 8th
Transplant / Sow Outdoors	May 8th
Harvest Begins	Jun 7th
Harvest Ends	Sep 30th

Crop Details

Trait	Value
Days to Maturity	30
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	55
Min Night Temp (°F)	40
Harden Off (days)	Not Required

Recommended Companions

Durango Red Marigold

Marketmore 80 Cucumber

Red Bull Cabbage

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Super Red 80 Cabbage

Straight Eight Cucumber

Frequently Asked Questions

What pest or disease commonly affects Tropaeolum majus (Alaska Mix), and how can I control it?

A frequent issue on nasturtiums is aphids, which cluster on tender new growth and can stunt plants. Spray affected stems with a strong jet of water or use insecticidal soap, repeating every 5–7 days until new growth is clear. Keep foliage dry by watering at the soil line and improving airflow, because damp leaves encourage leaf spot fungi.

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

Water regularly to establish plants, keeping the top 1 inch of soil lightly moist, then shift to watering only when the top inch begins to dry. During the rapid growth phase, this usually means about 2–3 times per week in warm weather, less if it’s rainy. Avoid consistently wet soil—nasturtiums decline in soggy ground and produce fewer flowers.

How can I tell when Tropaeolum majus (Alaska Mix) is ready to harvest?

Harvest when blooms are open and the flowers are crisp, typically about 30 days from sowing for plants grown from seed. For leaves, pick young, tender foliage early in the season for best flavor and texture. If you’re harvesting seeds, wait until the seed pods turn firm and green-to-brown before cutting and drying.

A peppery burst of color—tender nasturtium blooms in a lively Alaska Mix—arrive with a bright, jewel-like charm and a zingy, garden-fresh bite. Expect succulent, rounded leaves and crisp, juicy stems that lend a pleasantly crunchy texture, while the flowers bring a vivid mix of warm tones for garnishing and flavor-forward salads. Grow for quick, 30-day gratification and a continuous show of edible blossoms that brighten every plate with their distinctive tang.

Sowing Tips

Transplant Conditions

Wait until soil reaches 55°F and nights stay above 40°F before moving outdoors.

Expert Note

For best variegated growth and heavy blooms, sow after frost in warm soil and avoid transplanting whenever possible (nasturtium is taproot-tender).