Flowering recommendations - Knowledgebase Question

Feasterville, Pe
Question by rd31633
April 29, 2010
I purchased serveral perennials only to findout that the flowers do not last too long. I would like a recommendation of perennials that bloom at different time of the summer so that I will always have blooms of flowers throughout the summer. I like the color purpule, red, yellow, pink,orange..... Please advise. Thanks!

Answer from NGA
April 29, 2010


Here are some long blooming perennials to consider:
Achillea (Yarrow) Bloom Span: 3+ Months; Achillea will grow almost anywhere, but it actually favors dry, lean soil. If given too much moisture or rich soil, the plants can become floppy. Deadhead spent flowers for repeat bloom. After the second bloom, rejuvenate the plant by cutting back to new growth.

Campanula (Bellflower) Bloom Span: 2+ Months; There are many species of Campanula or Bellflowers, all easy to grow and relatively long lived. They perform best in areas with cooler summers or in partial shade where the summers are more intense. Most Bellflowers will readily self sow. If they start to look tired and ragged after several blooms, shear or mow them down to a few inches and they will grow back fresher.

Coreopsis (Tickseed) Bloom Span: 3+ Months; Coreopsis are undemanding plants, but short lived. Either allow them to self-seed or divide the plants every 2-3 years and replant the newer, outer sections. Once the initial buds have completed blooming, sheer the plants back by 1/3 to encourage new flower buds.

Dicentra formosa & Dicentra eximia (Fringed Bleeding Heart) Bloom Span: 3+ Months
Unlike the common bleeding heart (D. spectabilis), cultivars of the fringed species will repeat bloom for most of the summer. D. formosa is a western native while D. eximia is able to handle the heat and humidity of the eastern U.S. The fringed bleeding hearts are smaller plants than D. spectabilis and the flower is not as pronounced a heart shape, but the gray-green ferny foliage and abundance of flowers make it a prize.

Echinacea purpurea (Coneflower) Bloom Span: 2-3 Months; Having a long bloom period is just on of Echinacea's many attributes. Coneflowers are extremely drought tolerant, attract birds and butterflies and the intense color adds punch to any garden. The tall stalks are self-supporting, unless they've received so much water they become floppy. They require good drainage and full sun. Deadheading will prolong the bloom period.

Gaillardia (Blanket Flower) Bloom Span: 3-4 Months; Gaillardia's yellow petals around a burgundy center are impossible to ignore in a garden. All they ask is full sun and they will keep on blooming all summer. Too mush shade and the stems begin to flop. In most cases, deadheading is not necessary for continual bloom, but it can make the plants look tidier.

Kniphofia (Red Hot Poker) Bloom Span: 3+ Months; The spiky, bottle-brush flowers of Kniphofia are beacons for hummingbirds. Although they look like tough customers, Kniphofia actually requires a bit of winter protection in cooler zones. They are also a bit fussy about liking moist conditions in the summer, but well-drained soil for the winter months. Full sun is generally necessary for ample blooms.

Liatris (Gayfeather, Blazing Star) Bloom Span: 3 Months; Liatris are easy to grow and texturally unusual. The thin, spiky leaves jut off the stems all the way to where the rosy-purple flower spikes begin. Unlike most spiky flowers, Liatris blooms from the top down. Liatris can handle just about any type of soil, but the richer the soil, the more likely they'll need staking. They'll grow in full sun or partial shade. Liatris is long lived and doesn't often require division.

Nepeta (Catmint) Bloom Span: 2-3 Months; Most people think of Nepeta as catnip (Nepeta cataria), a somewhat weedy garden plant. But there are many excellent ornamental Nepetas that will bloom throughout the summer, if deadheaded. Most have some shade of blue-lavender flowers and gray foliage. They are very drought tolerant and make a nice substitute for lavender, in areas where lavender won't thrive. Although not as attractive to cats as catnip, you may still find a cat or two rolling around in your plants.

Rudbeckia (Black-eyed Susan) Bloom Span: 3 Months; Rudbeckia are at home everywhere and many are native to various parts of North America. They prefers well-drained, somewhat lean soil and full sun. Deadheading will prolong bloom and cut Rudbeckia flowers will last a long time in water. With their flat landing pad petals, they are attractive to butterflies and the seeds will be eaten by the birds during the winter.

Scabiosa (Pin Cushion Flower) Bloom Span: 3+ Months; Scabiosa is a unique looking plants with a low growing rosette of narrow leaves and a profusion of gangly stems topped by pincushion flowers. They are relatively easily grown in average soil and full sun. Deadheading is a must for long bloom and general appearance.

Sedum (Stonecrop) Bloom Span: 2-3 Months; The taller sedums are unparalleled garden performers. Sedum 'Autumn Joy' is a near perfect plants, looking good for 4 seasons. Sedum flower buds are attractive long before they are fully in bloom and long after they have gone to seed, so there is no need to deadhead. They thrive in well-drained soil and full sun.

Tradescantia (Spiderwort) Bloom Span: 3-4 Months; Tradescantia doesn't get much respect, probably because they can become a bit aggressive. However, they will readily bloom in partial shade and can be easily controlled by pulling young plants or by crowding them in with other plants. They have somewhat grassy like leaves with clusters of 3-peteled flower heads. Each flower lasts only one day, but there are so many buds the bloom period is quite long. They prefer cool, moist soil and full sun, but will accept partial shade in exchange for the cool soil.

Veronica spicata (Spike Speedwell) Bloom Span: 3-4 Months; Veronicas start blooming in the spring and keep going through frost. The genus includes a broad range of plants, but V. spicata is most popular in gardens. The low growing dense foliage gives rise to narrow flowers spikes in blues, reds, pinks, whites and purples. Deadheading will keep them going all summer long. Drought tolerant, Veronica likes a well-drained soil.

Hope some of these plants find their ways into your garden this year. Enjoy!

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