when to plant cosmos seeds uk
Cosmos is best grown from seed and can be sowed any time throughout spring. If growing in pots pot on. Cosmos Bipinnatus Psyche White Thompson Morgan Cosmos Flowers Garden Cosmos Flowers White Plants Cosmos are straightforward to grow from seeds. . Either sow cosmos seeds outdoors after danger of frost has passed or for an early start on summer blooms sow seeds indoors four to five weeks before the last spring-frost. Prepare the soil before planting. Direct sowing cosmos seeds. Ad Compare Prices Read Reviews. If sowing a few varieties sow cosmos seeds in drills in different directions after all danger of frost has passed. Alternatively sow seeds indoors 4 to 6 weeks before your last spring frost date in trays. When to Plant Cosmos. From a spring sowing Cosmos take approximately 14 weeks from seed to flower. Do not worry too much about fertilizer and heavy. Early spring is the best time to sow cosmos seeds und...