Nasturtiums are easy to care for. Plant in the spring after all danger of frost has passed in a location that will receive full sun to partial shade. Space plants 8-12″ apart in well-drained soil that is of moderate to low fertility. High nitrogen levels promote more foliage rather than flower production. They will tolerate poor, dry soil. Plant height 12-16″.
Does best where summers are cool. Nasturtiums have average watering needs; don’t over water. Nasturtiums grow well in containers or mixed pots. Attracts hummingbirds.
Nasturtium, Mahogany Red tropaeolum majus
Mahogany Red Nasturtiums add a touch of old-fashioned charm to vegetable gardens, borders and pots with their deep scarlet flowers which blend beautifully into any planting. They are also a good choice to mix with spring-flowering bulbs, since they can effectively hide unattractive bulb foliage. The large, 1 1/2-2″, spurless blooms are an unusually rich color and are perfect for dramatic mass plantings as well.
The flower, leaves and seed pods are edible, each with a watercress or radish flavor. Chop leaves and flowers to add to salad; use flowers stuffed or minced and added to butters. Helpful hint: it is better to pinch out the pistils of the nasturtium flowers before using them. They often have a bit of a bitter taste.
Nasturtiums attract aphids and are often planted to lure aphids away from other plants. If you are growing nasturtiums to eat, using a safe soap spray at the first sign of aphids will help deter them from your plants.
Harvest flowers when they are fully open. You can harvest the leaves at any time. Collect seed head/pod when flowers fade; allow to dry. Or allow seed heads to dry on plants; remove and collect seeds.