Questions tagged [flowers]

The reproductive organs of most garden plants.

Flowers are the reproductive organs of angiosperms (flowering plants) which make up most of the plants grown in gardens. As well as the usual landscape and food uses, flowers specifically, are grown for:

  • visual appearance (whole plant, and beauty of individual flowers)
  • scent
  • food (e.g. )
  • attract (incl. honey bees) and birds (e.g. )

Although flowering plants (angiosperms) are the most visible and arguably dominant type of terrestrial plant today, they only became widespread around 100 Ma (million years) ago (first terrestrial plants: ~476 Ma; first angiosperms: ~140Ma).

Most plants are hermaphrodites with male and female parts in the same flower structure. However, many plants can have male and female flowers in order to reduce the chances of self-fertilization. Some plants will have only have one flower type on a plant, resulting in "male plants" and "female plants" (e.g. papaya and holly) - sometimes these plants also exhibit sexual dimorphism (e.g. papaya which has a smaller male tree, and a larger female tree with larger leaves).

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Is there anything that can turn azalea blooms blue mid-season?

We've used aluminum sulfate to keep azalea blooms blue in the past. This season some new guys apparently missed a fair number of azaleas in a large grouping and we have pink blooms on enough plants to bother the homeowner. Would applying aluminum…
That Idiot
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Plant Identification: Tall shrub-like plant with fuchsia flowers

I'd love help identifying this plant that I spotted in Amman, Jordan. It is about 3 feet tall, and nearly as wide. It seemed to be quite hardy, as it was growing in a break in the sidewalk. It has fuchsia colored flowers, about 1/2" across, with…
michelle
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Hawthorn identification

I have a question on the identification of two trees, which I am pretty sure are hawthorn species. First of all, where I live: Gants Hill, London, England, UK. I took the two photos below in the middle of last month, i.e. mid-May. I’m very sure…
George Law
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Is this plant with small white blossoms a weed or a flower?

There is a plant growing beneath our wine. What kind of plant is it? Flower or weed? Five little leafs are on the white blossoms. It is growing very fast. Leaves are large and heart shaped.
Arne
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What is this tall perennial with fragrant white flowers?

My grandmother brought me a bunch of shade-loving plants from her garden to help me fill in a few gaps in my own. She had most of them identified but this one had her stumped. Here's what I know from her: This is a perennial that thrives in shady…
GardenerJ
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Can I plant my amaryllis outside?

I live in Bromley (southern England) and was given a gorgeous amaryllis a few years ago. It is a Hippeastrum Monte Carlo. Unfortunately my wife seems to be allergic to the pollen but loves the flowers. Last year I tried to trim off the stamen which…
AvieRose
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Weird growth on wisteria stem

See attached picture. Is this growth normal? If not, what do I do?
JStorage
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Magnolia grandiflora 'Little Gem' not flowering

I have a magnolia 'Little Jem' that is about 4 years since I planted it in my backyard. It gets very good sunlight. However it is not flowering very well (see attached picture). I am in the San Francisco Bay Area. We had good rains so water is not…
JStorage
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Is powdery mildew spreading through my garden?

I noticed this white fungus a few weeks ago on some flowers in my garden which I ignored. But now it's appearing on my zucchini leaves. I was under the impression the fungi are plant specific, but could this be spreading from the flower leaves to my…
Graham Chiu
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Why did my pansies die?

I had some pansies and similar flowers in a horse trough outside on a balcony in San Francisco. They were doing well, and had done for around six months. Then it got very windy, and also very rainy, and my flowers shortly died (see photo). Is it…
Peter
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What are good summer flowers for humid and hot conditions in northern India?

What summer flowers can be planted in northern India in March? The summers are humid and very hot (35 °C average temperature). My garden is covered by a translucent FRP sheet (Fiberglass Reinforced Plastic) so the plants receive medium sunlight.
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What is this black bug, how to control?

I am not aware what the flower name is but they flower all around the year. I am attaching a picture here, please help me identify the black crawling bug on the flowers and how can I control them. They were not there a day before, I don't know how…
mbaxi
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How do I keep house flies away from flowers without harming bees?

Is there a pesticide or other method that can be used to keep flies off of flowers (or kill the flies) but that won't harm bees? I am in the northeastern US, dense urban area; the flowers are Chrysanthemums, outside, full direct sun, potted, not…
Jason C
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What is the name of this low-growing plant with pink flowers?

The plant is small, just about 4 inches tall, growing in my front yard, in Sydney, Australia. The leaves are grass like and the little flower is quite fragrant. I just can't recall the name, can someone identify it please?
Thomas
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Why do my passion fruit flowers lack pollen?

I have a passion fruit plant that is about 4 years old, and all the fruit it ever given were two little cracked marbles that fell off the plant quickly. I water it regularly, I attempted to water it more and sometimes less to see if it changes…