Nasturtiums are warm weather annuals that have been popular in herb gardens, cottage gardens and flower gardens for many years. Cultivars and hybrids sold under the name of Tropaeolum majus are generally referred to as common nasturtiums or garden nasturtiums.
These plants feature showy, long-stalked, spurred, funnel-shaped, 5-petaled flowers in shades of red, orange, yellow and cream. Flowers have a spicy fragrance. Flowers bloom from spring to fall. Rounded, long-petioled, parasol-like leaves of these plants are peltate (petioles attached near the center of each leaf).
By reputation, nasturtiums are easy-to-grow annuals that are tolerant of a certain amount of neglect.
Effective in beds, borders, mixed plantings, rock gardens, herb gardens, edgings over walls or as annual ground covers on slopes or other sunny areas. They are also effective in containers, including hanging baskets.
Except for roots, all plant parts (leaves, buds, flowers, pods and seeds) are edible (peppery flavor) and may be used in salads.
Grow in poor to average, slightly acidic, well-drained soils in full sun. Plants have some tolerance for dry soils.
Best performance occurs in cool summer areas. Some part afternoon shade is appreciated in hot summer areas where plants will be stressed by prolonged stretches of high temperatures.
Avoid fertilization which tends to increase foliage output but decrease flower production.
Information source: www.missouribotanicalgarden.org.
Genus - Tropaeolum
Species - Majus
Variety - trailing mix
Common name - Nasturtium
Pre-Treatment - Not-required
Plant type - Annual flower
Hardiness zones - 2 - 11
Exposure - Full Sun, Partial Sun
Height - 3 m
Spread - 0,40 m
Growth rate - Fast
Bloom season - July - September
Leaf / Flower color - Green / Shades of red, orange, yellow, cream
Soil PH - Slightly acidic
Soil type - Poor to average, well drained
Water requirements - Average
Landscape uses - Cottage, flower gardens, slopes
Seeds can be sown indoors in early spring or direct in the prepared soil outside in late spring to early summer.
Soak the seed overnight in warm water.
Sow in peat pots or trays of moist seed compost in depth of the seed size. Keep the surface of the compost moist but not waterlogged.
Temperature for germination - +15-+18C.
Normal germination time - 14-20 days.
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