The strong, lushly branched root system makes sage suitable for easy propagation by dividing. Here you will find all the important information about timing, the correct technique and subsequent planting.
How can I propagate sage by dividing?
To divide sage, loosen the roots in early fall or spring, lift out the root ball and divide it with a sharp knife or spade. Then plant each segment with at least two shoots in loosened, compost-enriched soil.
Choosing a date and dividing the bed – that’s what matters
With good care, sage develops a powerful stature after 3 to 4 years. At this time the herb plant has largely depleted the soil. In order to maintain its vitality, the evergreen subshrub is now being transplanted. On this occasion, propagation by division is an option, which at the same time serves to rejuvenate. How to do it right:
- After flowering in early autumn or early spring are the ideal dates
- Loosen the roots all around with the digging fork
- Cut very long root strands with a spade
- Lifting the root ball out of the ground
- Cut with a sharp knife or a courageous spade stab
- Each segment has at least 2 shoots
At the new location, the soil is loosened and enriched with compost. The planting pit has 1.5 times the volume of the root ball. Ideally, add a handful of rock powder or algae lime to the excavation. Plant the sage at the same depth as it was previously and water.
Divide sage in the pot if necessary
If sage thrives on the balcony, division should be considered after just 1 to 2 years due to its vigor. The herb plant is repotted at the latest when the roots grow out of the opening in the ground. In order to be able to continue using the existing pot, cut up the root ball and create additional specimens at the same time. You can do it in these steps:
- Unpot the sabi herb to shake out the used substrate
- Cut out obviously diseased, rotten and stunted root strands
- Split the root ball, like in a bed
- Spread a drainage layer made of grit or expanded clay in the pot over the water drain
- Pour a fresh herbal soil-compost-sand mixture up to half the height
- Insert one of the sage pieces and water it
Root growth is encouraged if a plastic bag or transparent hood is placed over the pot for 2-3 weeks. Regular watering is mandatory during this phase so that the roots spread quickly.
Tips & Tricks
Ornamental sage (Salvia nemorosa) is a wonderful pasture for bees and butterflies in the cottage garden. If you prune close to the ground after the first flowering, the enchanting perennial will bloom again after 5-7 weeks.