Gardening and Landscaping Stack Exchange
Gardening and Landscaping Stack Exchange

Questions tagged [perennials]

A plant that lives for two or more years.

A plant that lives for more than two years - i.e. not an or .

In horticulture, the term is often used to refer to only herbaceous perennials (those that die back in Autumn and then grow again from the root stock in spring), although technically woody plants such as and are also perennials.

Use this tag for questions about perennials in general. Questions about specific plant families or species should use the appropriate tag for the family or species.

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Is Poke Milkweed nice or nasty?

I am growing this from seed: Asclepias exaltata which is not the poisonous pokeweed Poke Milkweed Height .5-1.5m Zone: 4 The grower, Gardens North, claims it is: Found in the wild in rich woods and forest edges, with elegant sprays of…
kevinskio
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What should I consider before vacuum-sealing seeds for storage?

This year I have harvested more seeds than I will use next spring. I plan to vacuum-seal them and I want to know if, except for drying them really well, I should consider anything in particular. These seeds were harvested from plants that belong to…
Alina
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What is this plant, which has a spreading root system and purple, crinkled petunia-like flowers?

Click to enlarge This is a hardy perennial that grows up to 5' tall. It has a spreading root system and purple, crinkled petunia-like flowers. What is it?
J. Musser
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Hearty Flowering Perennial for curbside appeal

I'm lost in a sea of articles with none of them actually answering my question so I turn here. Currently I plant mums every year in my front yard (Midwest region: Kansas, Lots of sunlight on the area) and I'd like to stop the costly act especially…
Chris W.
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Can I save the berries from a Big Blue Liriope (Liriope muscari) and plant them next spring?

I have a big blue liriope (Liriope muscari) in my yard, and the flowers have changed to berries. I imagine the normal propagation method is to split the adult plant after it grows large enough, but if I don't care about time, could I take the…
The Flash
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What is this northern California perennial with variegated leaves with dark red lines on them?

This is a perennial, growing in moist, shady conditions in northern California. Does anyone know what it is?
Clena
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Rumex? Burdock? Perennial fast-grower has us stumped in Illinois

I figured this would be an easy ID given the size of the leaves, segmented stem, and such but haven't been able to nail it down. The fence pictured is 5 feet tall.
Drew
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What would be a good "cat grass" for the central Texas heat?

So I can buy the little pots of "cat grass" or even the grow kits at my local pet store, but I thought it would be more fun to have a little patch of it growing in the yard that (hypothetically) would be perennial so it would come back after (or…
Anthony
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What is the medium-leaved, thick-stemmed plant?

This plant was at the end of driveway, getting tossed by a previous owner. I'd like to care of it but I have zero idea what it is. Does any one know a likely candidate?
wxs
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Mystery emergent foliage (bulb?) USDA zone 5

My mom is an avid gardener and works in many gardens close to her. This plant popped up last week but she’s unsure of its genesis. She can’t inagine having planted two bulbs so close together, but maybe if it was a pair clustered together? This…
Nicolette
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Can I leave an Aloe plant unattended for 2 months?

I leave my apartment for 2 months and I'd like to know if you have any advice to keep my Aloe alive all this time? I live near the Mediterranean and my balcony is exposed to the sun from 1:30 pm to sunset. Here you can see the size of my Aloe vera.
Thibault Santonja
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What flowers and shrubs will grow without outside help?

I would like to plant some shrubs and/or flowers in a mostly wooded area behind my house (in NE Oklahoma). What are some good candidates that are (1) cheap, (2) perennial, and (3) hardy enough to survive without any assistance from me? (This is just…
xpda
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Recommendations for removing a plant from a perennial border

I'd love some recommendation on the best way to remove Lysimachia nummularia 'Aurea' from a perennial border. A little background: The border never really goes fully dormant, and is layered with many plants, including several layers of bulbs. …
Ben
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What is this small field plant with a tuberous root?

This plant was collected in a field South-Central Europe. Assume the height of the photo is 20cm. These are all small herbaceous plants. The ball next to it is the root. It has small bag-like accessories on it.
Quantomic
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Do I cut back all herbaceous perenials in fall?

I live in zone 4. I have been instructed to cut back some of my herbaceous perennials plants before winter. Should I do this to all herbaceous plants? If not, how do I know which ones to cut back and which one to leave "as is" or just partly pruned.
Gilles
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