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Flowering climbers that thrive in greenhouses

We love flowering climbing plants. But not all climbers thrive in a greenhouse environment. Here are some tips for some that do and that we also like.

It is wonderful to bring greenery into the greenhouse, partly because the plant curtains act as a natural shade curtain, and partly because you get the wonderful feeling of basically sitting wrapped in greenery in the greenhouse. If you also choose to plant some flowering climbers, the scents and colors will be a bonus. Not least important is that the flowers also attract pollinators, which is good for the greenhouse's fruits and vegetables.

Letting the climbing beauties snake their way up towards something support so that they reach ceiling height is very beautiful. But climbing plants don't have to climb upwards. You can also let them wind along the edge of the growing beds as a frame for other plants. It can also be nice to plant them in a hanging basket that is hung at a high height to create a waterfall of flowers and leaves in the greenhouse.

The environment in the greenhouse places some demands on the plants. Not all climbing plants can handle the climate. Here we have collected some climbing plants that thrive in the heat. If you are attracted to any of them, you will find more information and cultivation tips in our book Greenhouse Practice.

1. Bell vine

This is actually a perennial plant, but here in Sweden it is usually considered an annual. If you manage to overwinter the bell vine frost-free – perhaps in the greenhouse with the help of a frost guard – you can get an earlier flowering next season. It smells lovely and has beautiful foliage, especially towards late summer and autumn.

The greenhouse we built in the garden at Nynäs Castle.


The play of colors of the bell vine during late summer and autumn.

2. Flower of the day

The wind-protected warm greenhouse is ideal for this plant, which with its flowers and winding growth habit can throw itself around a bit in the greenhouse - well, it can even take a little walk outside if it wants to. Each flower is only open for a single day - a true reminder to seize the day. The flowers can vary in color, but we usually see them as purple or blue. The real forget-me-not blue is heavenly beautiful.

The white greenhouse that we built in the garden that belongs to Hovdala Castle.


The flower of the day is on a trip.

3. Lead flower.

This is a climber that brings to mind the Mediterranean, not least thanks to the lovely blue color that is the lead flower's signature. It is obvious that the lead flower thrives like a fish in water in the protected and warm greenhouse environment, although a warm south-facing wall as a backrest can also work. The trick is also to water it just the right amount, not too little and certainly not too much. Then it can wilt. All plants have their own special characteristics - right?

The large greenhouse that we built at Gunnebo Castle and Gardens outside Gothenburg.


Lead flowers both outside and inside the greenhouse at Villa Sundahl.

4. Cress

Cress is one of the plants that can be planted later in the summer because it can get a little tired if it gets too hot. It is also easier for them to attract aphids. It develops best in a really bright position, so don't let it be too shaded by other plants in the greenhouse bed.

5. Passion flower

This is a plant that is a bit of our house flower. It has hung out with Sweden Green House at many fairs around the country and has also been planted in growing beds in several of our own greenhouses. When planted in a greenhouse, the flowering can be more abundant than if it is placed on the windowsill indoors. It also thrives really well in high humidity, which makes the greenhouse a good place to grow this flower. But feel free to give it an extra shower now and then and you will be richly rewarded.

The large greenhouse that we built at Gunnebo Castle and Gardens outside Gothenburg.

Passion flower and cress, two given plants in the greenhouse.

6. Sweet peas

When it comes to this lovely flower, it's all about placing it correctly to make it thrive. A north-facing location is definitely better than a direct south-facing location in the greenhouse. When the sweet pea blooms, a lovely scent spreads throughout the greenhouse. Then you should take the opportunity to pick it because harvesting promotes the budding of new flowers. Another tip is to take seeds from the plants, especially if it's a variety that you particularly like. They are easy to sow and it's a luxury to be able to indulge in sweet pea.

The large greenhouse that we built at Gunnebo Castle and Gardens outside Gothenburg.

Sweet peas in full bloom in the greenhouse at Södermöja.

The large greenhouse that we built at Gunnebo Castle and Gardens outside Gothenburg.


Cultivation tips

When it comes to growing the climbing flower beauty, we refer you to our book, Greenhouse Practice, where information about suitable soil, watering, sowing time and sowing depth is collected together with other tips and tricks about growing in greenhouses.

The large greenhouse that we built at Gunnebo Castle and Gardens outside Gothenburg.