Questions tagged [plant-hardiness]

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3
votes
2answers
157 views

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 ...
5
votes
3answers
601 views

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 ...
4
votes
0answers
133 views

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/...
6
votes
1answer
105 views

Hardiness database [closed]

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 (...
3
votes
0answers
101 views

Please ID succulents and their hardiness zone to survive winter [closed]

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 ...
2
votes
1answer
840 views

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 ...
5
votes
2answers
628 views

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 ...
6
votes
2answers
98 views

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 ...
8
votes
2answers
117 views

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 ...
3
votes
1answer
229 views

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 ...
5
votes
1answer
73 views

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) ...
20
votes
1answer
4k views

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 ...
8
votes
1answer
97 views

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?