The Q&A Archives: growing and cutting Dames Rockets

Question: I have a border garden along a 6' stockade fence with hollyhocks against the fence and Dames Rockets in front of them. I understand that Dames Rockets are 3' plants, but these exceed 4' and some are falling over. Can I cut the tops on these and expect them to flower again this season, or is there a prefered method of making them stand up? They are beautiful, but not when on the ground!

Answer: Dames Rocket (Hesperis matronalis) is generally self supporting, between two and three feet tall, and prefers full sun so based on your description I would guess they are stretching for more light. (Other possibilities are a driving rain storm and excessively lush growth due to over fertilization.) Staking might help, but it won't stop them from stretching. Since they have already bloomed, trimming them is not likely to force another flush. Unfortunately they only bloom once a year and are in fact often biennial rather than perennial. You may find that they will self sow to make a self-perpetuating patch, however, if you allow them to set seed.

If these leaned because of the light, your hollihocks will probably lean, too. They will need to be staked to avoid a big mess when they bloom and it rains and they all fall over at once.

« Click to go to the homepage

» Ask a question of your own

Q&A Library Searching Tips

  • When singular and plural spellings differ, as in peony and peonies, try both.
  • Search terms are not case sensitive.

Today's site banner is by mcash70 and is called "Moss on a log"