A lavender wand will keep its scent for about a decade. You can also refresh them with a few drops of lavender essential oil.
The type of lavender you have , will make a difference on the wands. If the flowers are fuller or have longer stems, it will determine what the results are. I have munstead lavender, which is rather a small plant compared to most lavender. So my lavender wands are smaller and not as full. But that's okay, I still love them!
You will need an equal number of lavender stems. Use 20, 22, 24, 26, or 28. If you have fat flower heads you can use the lesser amount of stems.
Cut the lavender so the stems are at least twice as long as the length of the flower heads. This does not work well with dried lavender, so plan on making the wands on the same day you harvest it.
You will need-
20 to 28 lavender stems
A long ribbon, at least a yard long and about 1/2 inch wide.
Note - If you use a thinner ribbon you may need it longer. I used 1/4 inch ribbon on my wand for a more delicate look. With smaller lavender this size ribbon worked better. So use your judgement.
Put the lavender together in a bundle.
Tie all the stems together with one end of the ribbon right under the flower heads (kind of like you're putting a little necklace on it).
Now hold the lavender so the stems are up and the flower heads are pointing down.
At the spot just above the ribbon you gently bend each stem over the flower head. Keep doing this until all of the stems are bent (it'll look like a little cage around the flower heads).
NOTE - You can dry your lavender for about a week at this point if you want. It'll make for a little snugger wand due to the natural shrinkage from the drying. Or if you're impatient like I am you can make them right away.
Now take the ribbon and start weaving the stems together.
Put the ribbon over 2 stems then under 2 stems, over 2 and under 2. Keep doing this and when you come to row 2 the stems that where over the ribbon before will be under the ribbon this time. Just think basket!
Make sure you weave close to the above weave and keep it snug so there's no gaps. Keep doing this until the flower heads are completely encased within the ribbon and stems.
Now wrap the ribbon tightly 3 or 4 times and tie it off with a bow.
Cut the ends of the stems to even the stems.
And you're done!
They make lovely little gifts, if you can part with them.