• Enter your email address to follow this blog and receive notifications of new posts by email.

  • March garden tips & tasks

    If your fescue lawn looks a little skimpy, overseed early this month. Fescue grows best when the weather is still cool.

    Clip dead stems from perennial herbs – thyme, sage, lavender, rosemary. Pruning encourages vigorous new growth.

    Prune nandinas, flowering quince and other airy shrubs by reaching in and removing about a third of the branches at ground level.

    Remove mulch or leaves that may be covering perennials in garden beds.

    Prepare a new garden bed: Have the soil tested (check with your county’s Extension service). Remove grass and dig or till soil 8 to 10 inches deep and mix with soil amendments and organic matter to improve drainage.

    Add fertilizer lightly to perennials as soon as you see new growth. Too much fertilizer may result in lanky growth.

    Herb transplants that don’t mind cool weather -- parsley, cilantro, sage, oregano – can go in the ground now.

    When you cut daffodils to bring inside, cut the stems at an angle and place them in water right away. Change the water in the vase daily to keep them fresh longer.

    Save the date - Middle Tennessee garden events

    The Perennial Plant Society's annual Plant Sale will be April 8, opening at 9 a.m. at The Fairgrounds Nashville. The sale offers newly released and hard-to-find perennials from top local nurseries -- more than 450 varieties of perennials, vines, grasses, shrubs and annuals. The event supports local scholarships for Tennessee horticulture students and monthly gardening programs, open to the public, at Cheekwood Botanical Gardens. For information visit www.ppsmtn.org.

    The Herb Society of Nashville's annual Herb Sale will be April 29, 9 a.m. - 2 p.m. at The Fairgrounds Nashville. The sale will offer heirloom vegetables, rare varieties of perennial and annual herbs, handmade pottery herb markers and more. To learn more, visit herbsocietynashville.org.

  • Categories

  • Archives

New plants from old rosemary

QUESTION: I’ve recently moved a large rosemary plant from a friend’s yard to mine. It has not liked the move. I’ve started rooting some cuttings in water, and they seem to be doing well. How long should I let the roots grow before moving them to dirt? Do you recommend potting them in soil in a clay pot during this heat until they mature? Can I save what is left of the big plant in my flower bed?  — Charles W.

It may take several weeks, but stem cuttings of rosemary can root in water.

Good idea to root cuttings from the rosemary plant. Once they get a good growth of healthy roots — six to eight roots per cutting, 1 to 1 1/2 inch long — put them in a container in good potting soil. If they’re going to be outdoors, I don’t recommend a clay pot because in this heat, clay dries out very quickly; plastic containers may hold the moisture longer. Place them in a protected spot out of direct sun until they become acclimated to their new environment. If you have enough cuttings and the roots seem big enough, you could try to plant cuttings directly into a prepared bed in the garden. Wherever you put them, make sure they have good drainage, and get adequate moisture while they are acclimating to their new home.

If the big plant already looks like it’s dying, it may be too late to save it – rosemary is notoriously hard to transplant. But here’s one thing you could try: cut the branches back, which may allow the plant to put more energy into establishing new roots instead of maintaining a lot of top growth. This may not work, but it’s worth a try.

This is a good place to describe the process of propagating plants from cuttings. Start by cutting off 2 – 3 inches of the tender top growth of an established plant. Remove the leaves from the bottom end of the cutting, and dip the stem in a rooting hormone powder (such as Rootone). Place the cuttings in a damp rooting medium that drains well, and make sure the medium doesn’t dry out.

With rosemary cuttings, roots should form in about three weeks, and can be planted into individual pots. Pinch out the top of the cutting to encourage branch development.

Or, stick a few cuttings of new growth in a glass of water and wait for the roots to appear. Strip the leaves that will be below the water line, and change the water frequently. In fact, it’s a good idea to change the water every day. When roots develop, plant the cuttings in potting soil.

More from the garden:

The Creeper returns, at Turning Toward the Sun: A Garden Journal.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: