Growing Rosemary from Cuttings

Growing Rosemary – Cuttings or Seed?

Growing Rosemary from CuttingsTo many herb growers rosemary is an essential hub for any herb garden. Even gardeners who wouldn’t claim to have a special interest in herbs insist on growing rosemary somewhere  in their garden. 

Rosemary plants are quite easy to get hold of. You’ll find them for sale in any good garden outlet or craft fair. But its not difficult to grow them yourself either from seed or by taking cuttings.

Both methods work well, but propagating from cuttings is by far the easiest of the two methods.

In this article I’ll run through the three main steps needed to propagate rosemary successfully from cuttings.

  1. Taking and Preparing Your Cuttings
  2. Planting these Cuttings in Compost
  3. Nurturing and Encouraging the Cuttings to Grow

Materials You’ll Need for Growing Rosemary

To grow your rosemary you’ll need to buy or borrow a few items. Apart from the secateurs, none of them are expensive:

  • Mixture of potting compost and sand (2/3 of compost to 1/3 of sand)
  • Some 3 or 5 inch pots (plastic ones are fine)
  • Secateurs or a sharp knife

I’ll explain where all these things fit in as we go through the three steps.

Step 1:  Taking and Preparing Your Rosemary Cuttings

It goes without saying that you need to have a rosemary plant from which to take your cuttings.  Or you can find a neighbor that’s growing rosemary in his/her garden and ask if you can take a few cuttings.

The three main ways in which you can take these cuttings are:

  • From the young tender stems of the rosemary.  Do this in the spring, but it’s also possible to take cuttings in the summer after flowering.  Choose stems that are 2 to 4 inches long, but avoid the ones that have flower buds on.
  • From herb stems that have just started to harden.  These can be used as cuttings from the middle of summer until the fall.  Take cuttings which are 4 to 6 inches long.  As with the previous cuttings, avoid stems with flower buds
  • From established herb plant stems that have grown hard (i.e. they are no longer green). These stems can be used for cuttings in the autumn.  Choose stems that are 6 to 15 inches long.

In each case make a clean cut with your secateurs or knife just below the leaf nodes (this is the point where the leaves join the stem). On this part of the stem there are more plant cells. They will encourage root growth when the cutting is planted.

Trim your cuttings by removing leaves just above the cut.  If you are working with hardwood stems remove the growing tip of the stem before planting.

Step 2:  Planting The Cuttings in Compost

Now fill your plant pots 3/4 full with your compost and sand mix and push your stem cuttings firmly (but not too firmly!) into the soil at the edge of the pot.

If you are using a 3 inch pot you should be able to plant three cuttings around the edge. The stems should be buried to a depth of about a 1/4 to 1/3 of their length (except for your cuttings from established plant stems – these should be planted to a depth of 1 to 2 inches).

Once your cuttings have been planted insert three tall sticks (about 12 inches tall) into each pot. Cover the pots with a plastic bag to help retain moisture. The sticks will keep the bag away from the cuttings.

Step 3: Nurturing and Encouraging the Cuttings to Grow

Store your pots in a warm area, but out of direct sunlight.  The warmth will encourage the roots of your growing rosemary to develop. Keep the pots watered, but avoid over-watering.  Remove the plastic bags from time to time because too much moisture will encourage the growth of mold.

When you are growing rosemary from cuttings your softwood and semi-hardwood stems will form roots within five to six weeks. Your hardwood stem cuttings will take a little longer. When you observe signs of growth you can remove the bags and sticks.

Once your newly propagated herbs are established, you can replant the growing rosemary in pots or in your herb garden.

Here’s a video which will take you through the steps I’ve outlined above:

Ideal Conditions for Growing Rosemary

Rosemary prefers to bask in the sun and to be protected from cold winds. It can survive a mild winter planted outside in the garden, but if you live in an area that has hard winters its best to plant your rosemary outside in a pot, and transfer the pot to a greenhouse or sunny interior place during the winter months.

The ideal soil for rosemary is limey rather than acidic. The soil in my herb garden is acidic, so I put eggshells around the base of my rosemary to provide a limey growing environment. Alternatively you can use a little lime instead.

Although its not difficult growing rosemary from cuttings, you may find that some of your cuttings don’t take (i.e don’t develop roots). This isn’t usual, so don’t worry that you’ve done something wrong. Just make sure you have taken more than enough cuttings to meet your requirements.

There are five or six popular varieties of rosemary, some with blue flowers as shown in the photograph at the top of this article, and others with purple or white flowers. You might find it difficult to get hold of cuttings from varieties of rosemary other than the most common variety (with pale blue flowers). If you particularly want to grow other varieties of rosemary you’ll need to grow your rosemary from seed.  You can find out about the other varieties of rosemary in our Herb Growing eBook

Earn Money Growing Rosemary

We have already mentioned that rosemary doesn’t always survive a winter if left outside in the garden. But once you have mastered the technique of growing rosemary from cuttings you’ll have a ready supply of rosemary plants that you can sell to replace the plants that have died in gardens around your neighborhood.  

Growing rosemary can be quite a profitable business, and once you have mastered the technique of growing herbs from cuttings there are other herbs that you can also grow from cuttings and sell!

Happy herb gardening,

 

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