A plant that lives for two or more years.

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3
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1answer
105 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
481 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
269 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 ...
5
votes
1answer
428 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
163 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
133 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
225 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
2k 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
813 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), ...
12
votes
4answers
1k 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 ...
7
votes
1answer
490 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?
11
votes
3answers
1k 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, ...
9
votes
1answer
248 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 ...
9
votes
2answers
194 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.
13
votes
4answers
26k 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 ...
13
votes
3answers
1k 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.