• Overwintering perennials

    Please advise if and when should I be moving the following potted plants to the garage over the winter: 1) Hosta. 2) Hens & Chicks. 3) Perennial Dwarf Sweet William. Thanks.…

  • Growing Peonies

    Hi there, I planted a herbaceous peony last fall and it started growing in March (?), but, then it seems to stop growing after it is about 30cm tall (but it doesn’t die either). I’ve put a ‘ring’ around it…

  • Sweet woodruff

    I have lots of sweet woodruff in my backyard. Now that the flower has come and gone, I am hoping to get advice on what steps I should now take. Does it get cut back,  and if so, by how…

  • Dark spots and eaten leaves on perennials

    My plants leaves are turning dark brown and curl up; it was started from one of the purple cornflowers, then it spread to the other purple cornflowers, bee balm and hydrangea. Most of them are new plants in my yard…

  • Mildew and white worms on phlox

    My purple phlox suffered from mildew in the late summer/fall, plus what appeared to be a small, about 1/4 inch long fat white grub or bug on the underneath side of the leaf. Can you please advise on what this…