When to Plant: Nasturtium thrives in cool temperatures, but it’s leaves are tender to below-freezing temps. Try to wait to plant outdoors until 1-2 weeks before your last frost date. You can plant in a container to be brought in and out of doors! East exposure plantings are also wise to avoid afternoon and evening heat.

Click here to find your last frost date.

Light: Partial Sun

Soil: Well-drained soil is best, but nasturtium can grow in many conditions. If planting in a container, use general-purpose potting mix.

Provide moisture when the top 2” of soil/mix is dry or when you notice wilt. Time between watering cycles is determined by your soil type and climate. If in a container, daily watering may be necessary. To contain growth, hold water as plants can get leggy with excess nutrients and water .

If planted in a container, try a slow-release fertilizer for easy care, following the recommended bottle rates. Sometimes, potting mixes incorporate slow release fertilizer that lasts for 6 months.

Fertilizing while planted in ground may not be necessary if soil quality is good.

All parts of the plant can be consumed, but nasturtiums are largely grown for their peppery blooms. You might notice a slight difference in taste between different bloom colors!

Nasturtiums are a lovely balance between ornamental and edible.

Nasturtiums don’t tolerate intense heat (90+). Like pansies, they are best enjoyed in spring and fall.

If you keep watering them through the summer, you can re-flush nasturtiums in the fall by cutting them back to their base leaves. They will produce fresh new growth as cooler temperatures approach in October.