No Flowers On Pansy Plants: Help, My Pansies Aren’t Blooming
Pansies are perennial favorites for many gardeners due to their prolific and lengthy bloom time and the myriad of cheerful colors available. Easy to grow, pansies are a terrific option for the novice gardener. Even so, gardeners may find that their pansies aren’t blooming. What causes no flowers on pansy plants? Read on to find out about pansies that won’t bloom and what to do when pansies are not flowering.
Help, My Pansies Aren’t Blooming!
The first thing to consider about pansies that won’t bloom is temperature. Pansies are cool weather plants that take a season to mature prior to blooming and setting seed. This means that in the northern region pansies should be planted in the fall; in warmer areas plant seedlings in the winter.
Pansies stop or slow their blooming when the weather gets hot. The heat is a signal to the plant that it is time to start a new generation, so it goes into overdrive to produce seeds instead of blossoms.
If the pansies are planted at the wrong time for your zone, a likely reason for the pansies not flowering is because it is either too cold or too hot for them. This is no reason to panic, however, as these little beauties are quite resilient. They may not bloom when you want them to, but they will likely produce abundantly when the weather warms or cools as needed.
Another reason for no flowers on pansies is the size of their root system. Many people buy a flat of small plugs for some quick color which, of course, have little root systems. If the plants are planted when the weather is still quite cool, they may just need a little time to grow better roots before blooming.
What to do for No Flowers on Pansy
Sometimes, you can help the pansies along by providing them with a bit of fertilizer. Fertilize them every two to three weeks with a bit of liquid fertilizer to encourage root and plant growth. Phosphorus fertilizer, like bone meal, will also help promote flowering.
Also, to encourage blooming, don’t be afraid to deadhead what little blooms you may have or even prune leggy parts of the plants. You may prune up to one-third of the plant to stimulate new blooms and growth.
A successful flowering depends on successful planting, so be sure to plant the pansies in a well-tilled bed that is amended with compost or well-rotted manure. This will nourish the plants, but they will benefit from an extra bit of fertilizer in the form of a 5-10-5 fertilizer once in the fall and then again in the spring.
To get the longest bloom time out of your pansies, plant them in an area of the garden that is out of full sun during the hottest part of the day, from noon to three p.m.
Lastly, if your pansies are lacking in blooms, it might just be the end of their life cycle. Since pansies are annuals or biennials in most regions, after only one or two cycles of blooming, they’re ready to go to that big garden in the sky, or the compost pile.
Winter pansies gardening guide
Breathe life into your autumn garden
As we head into the colder months, flower beds can often start to look a little stark. Luckily, winter flowering pansies are a simple and reliable way to brighten up your garden on those darker days.
Here’s everything you need to know about winter pansies, including the best time to plant them, how long they last, how often you need to water them and everything in-between.
Best Season for Pansies
Pansies are a go-to plant for cool-season color in Zones 7 to 10. In these mild-winter areas, pansies survive winter without missing a blooming beat. Gardeners in colder regions (Zones 4-6) can also tend a crop of colorful pansy flowers over winter. Plants may go dormant during periods of coldest weather, but can perk up in early spring as air temperature rises.
Viola plants tend to be more heat tolerant than pansies, but plant breeders are working to develop new varieties with heat tolerance that can deliver summer blooms. Anytime Pansiola is the result of a cross between a pansy and a viola, a pansy cousin that's heat tolerant. Pansiola plants open large, pansy-type flowers on trailing plants, making them a great choice for hanging baskets and pots.
Bugs and Insects and Diseases
Slugs and snails like to munch on the flower petals of pansies. Surround them with crushed egg shells or use baits around them if this is a problem.
Aphids will sometimes attack pansies, but they can be treated with an insecticidal soap.
Pansy Wilt affects pansies and violas. Symptoms are wilted plants and rotten crowns. The danger time is during the growing season.
Be sure to rotate pansy plants every year so this disease will not happen as often. To treat affected plants, lift them out and destroy (don’t add to the compost pile.)