Here’s a step-by-step guide on how to grow Crocosmias in the UK
Crocosmias, commonly known as montbretia, are vibrant and attractive perennial plants that produce colorful flowers. They are relatively easy to grow in the UK and thrive in well-drained soil and a sunny location.
Choose the Right Variety:
There are several varieties of Crocosmias available, each with its own unique flower color and size. Choose a variety that suits your garden’s aesthetic and your preferences.
Select a Suitable Location:
Crocosmias prefer full sun but can tolerate partial shade. Choose a location in your garden that receives at least 6 hours of direct sunlight per day.
Prepare the Soil:
Crocosmias thrive in well-drained soil. They are not too fussy about soil type but prefer it to be slightly acidic to neutral. If your soil is heavy or tends to retain water, consider adding organic matter, such as well-rotted compost, to improve drainage.
Planting:
Plant Crocosmia corms (similar to bulbs) in the spring, after the danger of frost has passed. Plant them about 3-4 inches (7.5-10 cm) deep and 6 inches (15 cm) apart. If you are planting more than one corm, space them at least 12 inches (30 cm) apart.
Watering:
Water the newly planted corms thoroughly and keep the soil consistently moist until they establish roots and begin to sprout. Once established, Crocosmias are relatively drought-tolerant.
Mulching:
Apply a layer of organic mulch, such as bark or compost, around the base of the plants to retain moisture and suppress weeds. This is particularly important during the growing season.
Fertilizing:
Crocosmias generally don’t require a lot of fertilization. However, you can apply a balanced, all-purpose fertilizer in the spring when new growth begins. Follow the package instructions for application rates.
Staking:
Tall varieties of Crocosmias may benefit from staking to prevent them from flopping over. Place stakes in the ground early in the growing season, and tie the plants to the stakes as needed.
Deadheading:
Remove spent flowers to encourage continuous blooming and to prevent self-seeding, as Crocosmias can be prolific seeders.
Dividing:
Every few years, consider dividing crowded clumps of Crocosmias. This helps rejuvenate the plants and encourages better flowering. The best time to divide them is in the spring or early autumn.
Overwintering:
In the UK, Crocosmias are generally hardy, but in particularly harsh winters, a layer of mulch around the base of the plants can provide additional protection.
By following these steps, you can enjoy the beautiful and vibrant flowers of Crocosmias in your UK garden.
