One thing I have PLENTY of in my garden is mint. The bad part of it's personality is that it is fast spreading and invasive, the good part of mint's personality is that it is reliable, aromatic and can be consumed! In addition, I found a 'recipe' for a natural, homemade bugspray which uses mint and I am eager to try making it to see if it works!
As most websites will tell you, harvest your mint in early morning or late afternoon. This is the time when it will retail most of it's oil and scent.
I did this, cutting about a 2 foot section out of the bush in my garden.
I then innocently lay it on the sandbox top and forgot about it, only to see it 2 days later in a downpour. Oh well. Never say mistakes don't happen on the homestead.
I had the boys bring it in tonight and I gathered it together with rubber bands. I made four bunches. I hung it in my slider window. It has a lot of light, the door is often open and gets plenty of ventilation.
When it is dry I plan to put it in jars and use it to make tea and the all natural BUG SPRAY.
Here is a recipe for mint tea: www.your-cup-of-tea.com/mint-tea-recipe.html
Make your own mint based bug spray: http://www.greenyour.com/body/personal-care/insect-repellent/tips/make-homemade-bug-spray
More general information about mint: http://www.greenyour.com/body/personal-care/insect-repellent/tips/make-homemade-bug-spray