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Apr 25, 2018 10:07 AM CST
|We have a small square patio area which is slightly raised (by about 10cm) from the surrounding grass where we've placed a small playhouse for our toddler. To make this into a more defined play area we would like to surround the patio with a low hedge. We're gardening novices but were thinking either lavender or rosemary could make a wildlife and toddler friendly hedge and hopefully be relatively low maintenance.
My question is whether the height difference between patio and grass will cause any issues. My hope is that the growth in the lavender will soon cover the height difference as I'm keen to avoid the expense/labour of creating a raised bed type border. I'm also wondering approximately how many plants per metre would be recommended.
Would really welcome thoughts from experienced gardeners about whether this sounds like a good idea. This is our very first garden so we're on a steep learning curve! Thanks in advance.
Apr 25, 2018 6:51 PM CST
|Hello & Welcome Totalnovice !
I am in growing zone 4b, in the State of Michigan. Sometimes low temperatures can go down to -30F (-34C). That's the absolute lowest a mature lavender plant will tolerate.
I have about 60 lavender plants in my perennial beds. Some are 40 years old. The soil must be well draining - never standing water. They love full sun.
I like your idea of a lavender hedge. You would want to plant a row of lavender plants about 24" (60cm) apart. The scent would be heavenly. Under normal conditions it would take three years for the plants to spread and fill in to form your hedge. If a plant should spread beyond your desired layout - just use hedge trimmers to prune. Never trim the wood stems, only the soft needle-like leaves and flower stems. I notice they trim up nicely in the fall.
See in the picture there two lavender plants in this perennial bed, just coming into bloom. Depending on the lavender variety, the height/width can be 12" to 42" (30-106cm) when in full bloom.
I wish you the best of luck with your garden.
"Things won are done, joy's soul lies in the doing." Shakespeare
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