There are different varieties of nasturtium, some are perennial, while many hybrid varieties are annual. This ensures a lot of variety and a wide variety of colors in the flower bed. However, none of these varieties are winter hardy.
How do you overwinter nasturtiums correctly?
To successfully overwinter nasturtiums, place the plants in a bright, frost-free location such as a heated greenhouse or winter garden. Water moderately and avoid fertilizing in winter.
Many garden owners simply let the perennial nasturtium freeze and sow again in the spring. Since the seeds are quite inexpensive or are even collected from your own plants, this method is cheaper than overwintering and also less time-consuming.
How can you overwinter nasturtiums?
Balcony or patio plants just need to be placed in a suitable place to overwinter. It should be frost-free and bright all winter long. A heated greenhouse or winter garden are well suited for this. Water your nasturtiums moderately and avoid fertilizer altogether.
The most important winter tips for your nasturtium:
- bright and frost-free
- water moderately
- do not fertilize
Tips & Tricks
Overwintering is particularly worthwhile for rare or unusual varieties.