Gardening and Landscaping Stack Exchange
Gardening and Landscaping Stack Exchange

Questions tagged [plant-hardiness]

18 questions
23
votes
1 answer

How often should I harvest herbs?

I have a few herbs growing hydroponically (basil, chives, cilantro) that are about 4 weeks old. Right now they are about 4-5" tall and have a health glow and smell to them. The herbs are being held at a continuous temperature, light, and nutrient…
WienerDog
  • 2,204
  • 1
  • 20
  • 34
8
votes
1 answer

Has my USDA hardiness zone changed?

The USDA just released the first new hardiness zone maps since 1990. Am I still in the same zone?
Ed Staub
  • 6,389
  • 25
  • 31
8
votes
2 answers

Just *how* hardy are leeks, kale and brussel sprouts?

I'm wondering if these plants will last another two weeks to Thanksgiving. I live in northern Vermont and the gardening season is well over. We turned over and composted the beds, and have had many frosts by now. Yesterday there were the first…
doub1ejack
  • 1,039
  • 1
  • 11
  • 17
6
votes
1 answer

Hardiness database

I'd like to buy a plot of land for trying to live off the grid. However I'm struggling to find what I can plant in certain regions. I'm in Europe and I need to check what I can plant in each region (from 7 to 10). How can I check such information,…
Hola Soy Edu Feliz Navidad
  • 393
  • 4
  • 9
6
votes
2 answers

Auckland Rural Zone and Confusion about Frost Protection

The more I look into it, the more confused I'm getting about frost protection. Any advice to help me get a grip on the issue would be appreciated. I have a property in Dairy Flat, which is rural Auckland, New Zealand. Our temperatures tend to get…
davidgo
  • 3,426
  • 1
  • 14
  • 25
5
votes
4 answers

Growing Pinus pinea in zone 8a - possible?

A nursery in my area happens to sell a rare kind of pine: Pinus pinea (also known as umbrella pine, parasol pine, or stone pine). I a kind of fell in love with this plant: it is a gorgeous kind of pine, well known as a symbol of city of Rome, and…
VividD
  • 5,810
  • 3
  • 21
  • 63
5
votes
0 answers

Bacon Avocado as Root Stock

Living in New Zealand, we have very limited choices of avocados. I've recently come across a new type - "Hayes" - which has been grafted on to Bacon rootstock. Does anyone know how water/phytophthora tolerant Bacon root stock would be compared with…
davidgo
  • 3,426
  • 1
  • 14
  • 25
5
votes
2 answers

Is using detergent on plants a good way to revive them?

A friend said to me: Using a little detergent can help revive a potted (or planted) plant that has not completely died but has been under watered almost to the point of death. I'm dubious; using detergent on a plant sounds like it would kill it…
Tim Malone
  • 563
  • 1
  • 5
  • 14
5
votes
1 answer

Why does my garden centre say these plants are annuals?

I'm in the UK (so hardiness zone 8/9), and my local garden centre is selling Chrysanthemums and Michaelmas daisies, labelled as "one season only". I'm sure as a kid my gran had (the same) Chrysanthemums year after year, and my dad has some…
Corvus
  • 185
  • 4
4
votes
1 answer

Understanding USDA Hardiness Zones and meaning of Frost Tender with respect of Zone 8

I live in Rural Auckland, and some early mornings in Winter the temperature drops to -4°C (although on a cloudy night temperatures above +4°C are more common). I would have thought that temperatures of < 0°C would preclude me from growing a range…
davidgo
  • 3,426
  • 1
  • 14
  • 25
3
votes
2 answers

Best species of moss for a rock garden in the Midwest USA?

I live in the Midwest USA and I'm making plans for a rock garden inspired by one in Japan. I would probably need something tolerant to winter temperatures and hot summers, along with a mostly sunny lawn (I've got 2 trees packed into the corner of my…
redfrogcrab
  • 133
  • 4
3
votes
2 answers

What does the USDA zone range mean?

When buying plants I sometimes see info about the plants hardiness described as "Hardy in zones 3-8". From what I understand this means that the lowest temperature this plant can withstand is -40? But what about zone 8? Is that the highest…
Tove
  • 31
  • 1
3
votes
0 answers

Please ID succulents and their hardiness zone to survive winter

I need help please to ID these succulents and their hardiness zone. I'd like to know if they will survive where I live, in zone 5, if left outdoor in the winter while keeping them in their current container and arrangement. It's only plant H that…
Tweetskee
  • 73
  • 3
3
votes
2 answers

Will Bermuda grass survive in Boston

I live in the Boston metro area, which is a zone 6a/6b. The grass we currently have does not do well in the summer at all. The center of our yard is full sun most of the day and pretty much dies when the real summer heat arrives. Therefore, I am…
Pbaz
  • 413
  • 1
  • 6
  • 12
3
votes
1 answer

Can I graft a zone 10 tree's scion onto a zone 6 tree's rootstock?

I want to grow pomegranates outdoors in Souther Ontario (Canada), and I am wondering if this would be possible by grafting a pomegranate scion onto an apple rootstock. Does anyone know if this is possible, and if it is would it survive a Canadian…
Dan Green-Leipciger
  • 133
  • 4
1
2