Showing superb garden performance in our trials, this eye-catching nasturtium produces masses of lovely golden-petalled flowers which sit on top of lush green foliage. The slightly ruffled blooms fade to lemon as the season progresses whilst the lax, bushy, slightly spreading habit makes Nasturtium Banana Split a must for containers as well as the front of borders where it will flower freely all summer.
Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.
Sow March to May. Sow outdoors where they are to flower. Sow seed, 20mm (3/4in) deep in drills 30cm (12in) apart in well-cultivated soil which has been raked to a fine tilth. Water ground regularly, especially in dry periods. Germination usually takes 7-12 days.
Can also be sown in pots or trays of moist seed compost. Cover seed with a sprinkling of compost or vermiculite. Keep at between 15-20ºC (59-68ºF). After sowing, do not exclude light as this helps germination. Keep the surface of the compost moist but not waterlogged; germination will usually take 7-12 days.
For direct sown plants thin out seedlings to 30-45cm (12-18in) apart when large enough to handle.
For pot grown plants, when large enough to handle, transplant seedlings into 7.5cm (3in) pots or trays. Plant out into borders or containers once the young plants are well-rooted in their pots after all risk of frost.