Rosemary is one of my “must- have” herb in my garden, but its one of the hardest herb to cultivate in our weather.
Home grown Rosemary plants to drool over! If only I have one sunny spot to grew this well at home as this herb loved the sun!
Without any sunny spot to grow, your rosemary probably will look like mine :
My second trial with rosemary cuttings from Terence Low (NakedGreens group) ‘s plants was more rewarding.
Jack Yam, a member in our Facebook gardening group (SG Farming in Apartments), perfected the rooting method for rosemary, and had a pictorial tutorial on how to root them.
This is what he said –
- Trimmed away the leaves from mid to bottom of the stem
- Support the cutting so that only 1 cm of the roots’ end is in water
- Cutting root better in bright sunlit area
As our rosemary plants were in the outdoor gardens without shelter from rain, a customized soil mix was prepared to allow rain to drain out as fast as possible. 🙂
The trick is mixing the soil, to be less soil! 😀 More sand, more pebbles, only 30% soil, the rain/ water must flush out as quickly as it arrived. How to get the soil mix right? Play with your mixes – Mix and match your soil one lazy afternoon, dip in a pail of water n see if it drained in one minute! 😀 Add more pebbles etc if they do not drain well. Lastly, the base of the pot is best lined with pebbles or rocks to aid draining as well.
Other gardeners also generously shared tips on how to propagate and keep rosemary plants thriving for years. So my thanks to all of them for sharing.
Sthh Sthh from Plant Community Singapore shared how to root Rosemary from store bought herbs :
Sthh Sthh used his own mix of nutrient solution too.
His recipe is : NPK 21-21-21, a dash of epsom salt, and a teaspoon of seachem flourish trace minerals into 3 litre of water. EC about 2000. (I am clueless here as well, not being familiar to commercial fertilizers! )
STHH STHH also shared how he watered and adjust the soil media needed for a dry loving plant like rosemary and even lavender! Deep Water Soak Treatment –
STHH STHH – How I water my rosemary and thyme, very deeply. Entire pot is submersed in a basin of water. Then pot is lifted to drain.
If water does not completely drain in less than 1minute, your medium is too dense for rosemary or thyme. Time to add some grit. Many options are available – sand, pebbles, perlite, whatever that aid good drainage.
If your water does not soak deep into the soil, the roots of the plants will stay close to the surface, and if so, you cannot skip watering your plants every couple days, which also increases humidity, which is a killer for rosemary and lavenders here in SG.
Deep watering helps plants to establish better roots, and watering will be required only once a week, or twice a week when it gets hot. For suspected fungal infection, or for aeration of soil, you can add a little hydrogen peroxide.
And that is how STHH keep his rosemary plants so well. Please remember to only water these plants when the soil is dry.
Agnes Yang on Feb 8 2016 shared how she root her rosemary cutting (from a live plant) –
Ms. Yang used a syringe to draw a small amount of this and she also said, ” I’m using diluted seaweed solution. Cheaper than rooting hormones and works well as continuous support even after potting through watering with it”.
As rosemary is fussy about wet soil, these are the recommended soil mix recipes :
Steve Teh (Plant Community Singapore, Dec 8 2015) – Compost: perlite: coarse sand: rice husk. The ratio is 3:1:1:1. Some limestone powder added in the mix for higher alkaline level. If rice husk is not available, then add more sand and perlite. Coarse sand is from nursery and not the beach as the latter contained salt. If beach sand is used, it need to be washed first to rid of salt.
Veronica Yuen (SG Farming in Apartments, Jan 2016) – ” It require good drainage, use 50% perlite, 25% compost, 25%potting mix. Water once or twice a week.”
Terence Low, Naked Greens – 1:1 top soil and other part perlite, pumice or sand will do.
Guanster Guan ‘s soil mix formula, please click on the hyperlink.
All in agreement that Rosemary are sun lovers 🙂 Just don’t love them too much with the watering! 🙂
Rosemary add an aromatic bite to salad and is not only used in roasting meat 🙂
Life’s simple pleasures from the freshest home grown herbs at doorstep!
After overcoming the challenges of growing rosemary, there is only happiness and satisfaction during harvest.