What am I?

Cover the clues so you can only see number one. How many clues do you need before you know the answer?

1. I am about 17cm wide

2. I am part of a mulberry tree and you can still see my bark. You need to know which famous person planted me.

3. He planted me in his English garden in a town with the same name as a Taranaki town.

4. I must have been planted between 1564 and 1616.

5. My planter was a poet and a playwright.

6. Perhaps his wife Anne sat under my branches.

Answer in the next TreasureLink.