Written by Dale Richardson - Updated: June 23, 2023
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Crocosmia is a beautiful and rather exotic-looking flower - but if your crocosmia is not flowering, you may be tempted to give up. This South African plant is easily recognized by its sword-shaped leaves and bright flashes of scarlet, orange, red, and yellow flowers. These plants are relatively easy to grow if done properly but require due attention.
If your crocosmia is not flowering, the most common causes are over fertilisation, lack of sun, poor watering, and transplant shock.
Keep reading to learn everything you need to know about crocosmia and how to grow it to a healthy, beautifully flowering plant.
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Generally, when growing crocosmia it's best to plan for a few things. First and foremost, we're going to be talking about transplant shock. Let's get into it, shall we?
In short, transplant shock is what happens when you move a plant to a new environment that it's not prepared for. While some plants can be easily replanted and moved about as need, crocosmia is not one of those. When you're planting a crocosmia plant, it's best to plan for it to not flower much (if at all) during its first blooming season in your garden. This is a common sight and shouldn't make you worry too much.
If you're planning on moving a crocosmia plant, do the following to reduce the chance of your plant experiencing transplant shock:
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If you provided too much fertiliser or mulch, you may notice that your crocosmia plant has an abundance of shrubbery and few (if any) flowers. This is a direct result of overfeeding your plant! Crocosmia is native to South Africa and its relatively rocky and nutrient-lacking soil, meaning it's able to grow in most places. This also means that it doesn't require a lot of food to survive.
If you overapplied fertiliser, it may be too late for the plant in question to flower this year. However, there are a few good things to know that will allow it to flower beautifully next year.
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Just like people, plants need the sun to thrive. Depending on your climate, the area in which you planted your crocosmia may affect how much it's flowering.
Assuming you're not in an overly hot climate, planting your crocosmia in a spot that will grant it long hours of full sunlight will make it flower perfectly. However, if you're in an extremely hot climate that's prone to extended periods of high temperatures, it may be best to plant if partially in shade. Alternatively, if you feel that you've planted in an area that's too shaded, look above to see how to transplant your crocosmia.
If you live in a hot area, it's best to add compost, manure, or leaf mould to your soil to improve its moisture capacity. Additionally, watering during extreme heat flashes will ensure your plant has everything it needs to thrive.
Water is vital to just about every plant's well being. Crocosmia is no different, but it's important to know exactly how much you need to water it to make things work. And don't forget - your climate dictates how much water you need more than I, some stranger on the internet, ever should. So if you feel that there's not enough water going into your plant, consider upping your weekly watering.
Generally (in ideal conditions) crocosmia needs to be watered generously once a week. It needs well-draining, moist soil at all times to flower well. If you're in a hot climate that gets extreme temperatures, a combination of mulch and slightly more water will help. This is because mulch helps to retain moisture without drying out too quickly.
Crocosmia is a beautiful plant when it flowers, presenting a wide array of incredible colours. But if it's not provided with the proper home, it will struggle to flower. Ensuring that it's getting enough sunlight and water will keep it happy - though that's not all.
Over-fertilisation is a common mistake many people make when first growing crocosmia. This results in a healthy and flower-bare plant that's heavy on foliage. And perhaps the most important question to ask yourself is when you planted your crocosmia. If this will be its first year, don't expect your crocosmia to flower right away. It will likely present with a lot of leaves and few flowers. This will improve the next year with proper care.
Now go get gardening!
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