Rudbeckia Plants

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  1. Rudbeckia
  2. how can i shorten the height of my rudbeckia?
  3. Rudbeckia
  4. picture of plant leaves to identify several perennials
  5. Rudbeckia
  6. Cutting back perennials in the fall
  7. ' Black-eyed Susan
Asked by Anonymous on August 27, 2011
Rudbeckia

I have a couple of Rudbeckia plants; however, the flowers dry up and look bronzy as soon as they bloom. The flowers in gardening books look pink and pretty. What can I do to make them look healthier?

ANSWERS
Nikki
Certified GKH Gardening Expert

Rudbeckia tends to be yellow and brown. There is a flower that looks similar to Rudbeckia and is pink.This is Echinacea, also known as Purple Coneflower.

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Asked by linda.johnston24@yahoo.com on March 24, 2012
How Can I Shorten the Height of My Rudbeckia?

I bought a different kind of rudbeckia not realizing the height was 5 feet.

ANSWERS
Nikki
Certified GKH Gardening Expert

While you really cannot do anything about its height per say, you can trim the plants or deadhead to encourage more compact growth.

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Asked by Anonymous on April 16, 2014
Rudbeckia

Is there a way to kill an invasive rudbeckia without having to dig it up? Thanks.

ANSWERS
Nikki
Certified GKH Gardening Expert

Unfortunately, unless you want to resort to herbicides, like Round-up, digging the plant up may be the best way to remove it. Getting it before it flowers and subsequently drops seed will help with 'pop-up' seedlings too.

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Asked by mitchelldoghouse on May 31, 2015
Picture of Plant Leaves to Identify Several Perennials

I am digging perennials from an old bed where the plants are not marked. I need help distinguishing between rudbeckia and coneflower leaves. Also, need to see what the leaves of a peached leaf bell flower looks like.

Asked by Johnbohrer14605 on July 4, 2015
Rudbeckia

Something is eating the petals.

ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert

Something has been after mine too! I have found aphids on my plants, but leaf spot can be an issue also.

Treat with Neem Oil, as it works as both a fungicide and insecticide.

https://www.gardeningknowhow.com/ornamental/flowers/black-eyed-susan/rudbeckia-leaf-spot.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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Asked by eliseboucher on September 11, 2015
Cutting Back Perennials in the Fall

I have planted perennials I never had before. I don’t know if I should cut them back in the fall like we do for hostas and others. They are: Jupiter’s Beard, Gaura lindheimeri, Golden Groundsel (rudbekia), bugleweed, aster, serbian bell flower, wormwood-Powis Castle, Chrysanthemum.

ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert

I'm listing links for the plants you mention.
You generally can leave most perennials to die off themselves. I choose to leave some for winter interest, Black Eyed Susan is quite lovely in the winter.
Cutting the plants back to about 4 to 6 inches in height at the end of the season can help neaten up the garden and make spring clean up easier.

This will help with pruning and winter care.

https://www.gardeningknowhow.com/edible/herbs/valerian/growing-jupiters-beard-plant.htm
https://www.gardeningknowhow.com/ornamental/flowers/gaura/growing-guara-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/black-eyed-susan/black-eyed-susan-flower.htm
https://www.gardeningknowhow.com/ornamental/foliage/ajuga/ajuga-bugleweed.htm
https://www.gardeningknowhow.com/edible/herbs/wormwood/wormwood-plant-growing-sweet-annie.htm
https://www.gardeningknowhow.com/ornamental/flowers/chrysanthemum/growing-chrysanthemum-flowers.htm

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Asked by Anonymous on May 21, 2017
‘ Black-Eyed Susan

How can you tell if your Black-eyed Susan is an annual or perennial??

ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert
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