A plant that lives for two or more years.

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10
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3answers
962 views

Hardy edible perennials that are easy to propagate?

I'm looking for hardy (USDA Z4/Z5; -15F winter lows) perennials (or low maintenance reseeding annuals) that are easy/reliable to propagate either via cuttings, division, or seed. The growing season is ...
4
votes
1answer
107 views

What is this 2' high plant with curved spikes of white flowers, growing in eastern Massachusetts?

Please identify this plant. It is about two feet tall and thriving in the shade of large trees near the edge of a small street.
4
votes
1answer
93 views

What is this plant with spiky leaves found on a beach in Indonesia?

Some time ago I found a plant on Depok Beach (Yogyakarta, Indonesia). This is what it looks like: It looks like spiky leaves that grow from its branches. The leaves are actually quite hard: you ...
3
votes
4answers
79 views

What are some recommended perennials to grow under large spruce trees in an area of about 350 sq. feet?

I have a small area which I would like to fill with (hopefully perennial) foliage plants, to green it up. I was thinking a variety of different hostas would fit the bill. If this was your bed, what ...
2
votes
2answers
66 views

What's going on with these Snow in Summer plants?

I planted about a dozen Snow in Summer flowers about 2 months ago and most of them are turning brown in the center. I don't think this is a water issue, but perhaps... the ground doesn't drain very ...
4
votes
1answer
47 views

What should I do to make my strawberry a perennial?

http://homeguides.sfgate.com/care-tristar-strawberries-45860.html says that Strawberries grow as perennials in U.S. Department of Agriculture plant hardiness zones 3 through 9, depending on the ...
2
votes
1answer
65 views

Can somebody try to identify this potential perennial?

I was cleaning out some gardens and am not sure what this is. Is it a weed or not?
3
votes
1answer
35 views

When should Bee Balm bloom in Zone 6 (it did not bloom last year)?

Two years ago we planted some bee balm. We trimmed it back in early March last year and it never bloomed, though the plant was otherwise healthy and bushy. We trimmed it back again this year. Is ...
4
votes
1answer
202 views

What's eating this Weigela Shrub?

I planted some Fine Wine Weigela shrubs last fall. They seemed to be doing OK over spring then in the summer they took a turn in the wrong direction. They lost their color and are a light green. ...
4
votes
1answer
163 views

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 ...
3
votes
1answer
85 views

Help on identifying a sharp leaved white-(another variety of it is red-)flowered perennial

In my garden I have a perennial (at least in a second year) in two varieties (one white-flowered, one red) of the scrub pictured below. I collected seed from it last year and I got seedlings from it ...
6
votes
1answer
359 views

What is this low growing square-stemmed plant in my lawn?

I have a small, dense, spreading herbaceous perennial plant in my lawn. I don't have anything against it, but I would like to know what it is. It has slightly square stems and rounded leaves. It has ...
5
votes
1answer
228 views

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?
5
votes
1answer
139 views

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 ...
2
votes
1answer
113 views

What tulips are best for perenniallizing in a clay-base soil?

I have tried several times to plant tulips and have mixed results. They all do well the first year, but after that some varieties consistently die and others thrive and spread. After a little ...
4
votes
1answer
187 views

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 ...
6
votes
2answers
996 views

How can I tell what animal is eating my plants?

Many of my perennial garden plants have been getting eaten by some animal. Possible culprits include deer, rabbits, and groundhogs. I would like to control them, but I have to know what I am ...
6
votes
2answers
576 views

How do I prepare a chili plant for a second year's growth?

I have finally managed to make one of my chili plants (variety unknown) live into its second year! I've kept it indoors so far this winter. As it will be spring in a couple of months (I'm in the UK), ...
10
votes
3answers
15k views

Can dahlias be grown as perennials?

The wikipedia article on dahlia says that they are perennial plants. However, the dahlia section at my local garden center claims (in their little info booklets) that they are annuals. Upon further ...
5
votes
1answer
364 views

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?
10
votes
3answers
984 views

What are some tall, narrow perennials suited for dry soils, sun & shade?

I have an herb garden that stays quite dry. Although this garden is in the notoriously wet Pacific Northwest (USDA zone 8a), it is against a two story south-facing brick wall, under a large overhang, ...
10
votes
2answers
948 views

Which herbs can be grown as perennials?

What are some herbs that are perennials, i.e. they return and grow the next season? I'd like to keep a garden of herbs around for cooking.
8
votes
1answer
185 views

Are goldenrod cultivars manageable or troublesome?

We have a tough dry spot in the garden (USDA zone 4) about 2' x 5' where a goldenrod cultivar would go nicely. The native species, although attractive, has a tendency to seed freely and be almost ...
8
votes
2answers
144 views

Are chilis an annual plant?

Are chili plants an annual plant? I have read on the web that they are perennials. But mine have never lasted more than a year.