One other point, if you keep the plants in pots keep the soil on the dry side as they hate wet soil. I have a lot of pots of lavender and always make sure to mix fine gravel in with the soil so its very free draining.

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And when you're back stops aching,
And you're hands begin to harden.
You will find yourself a partner,
In the glory of the garden.

Rudyard Kipling.