This beautiful mediterranean herb is an evergreen with narrow, dark green leaves that have been a pantry staple seasoning for hundreds of years. In the spring and summer, this bonsai will showcase beautiful blue flowers and an incredible fragrance.
As an edible bonsai tree, it will bring joy all year long.
How To Care For Your Rosemary Bonsai Tree
Rosemary Bonsai Care
About The Rosemary Bonsai Tree
Placement
When the outdoor lows are around 50 degrees F, place your rosemary bonsai tree on a windowsill indoors. South facing is best, east or west is second best, and you should avoid north if you can (or just use an indoor grow light.)
When the temperatures are above 50 degrees, your rosemary tree can live outdoors.
It loves a TON of sun, so don't feel the need to protect it. Just ensure it's well watered.
Watering
Never let the soil completely dry out. Whenever the soil seems dry, thoroughly water your tree until the water runs clear from the bottom. In the growing season, this can be daily.
If you need help, a good moisture meter will guide you.
Humidity
When your rosemary bonsai tree inside, using a humidity tray is recommended. It will prevent the water from running on the floor, and can help boost the humidity around the tree.
Fertilizing
Since your rosemary bonsai is in a small pot, and not the ground, it needs nutrients. A slow release (pellet based) fertilizer is perfect for this, and can be added sparingly every 1-2 months during the growing season.
If you plan on eating the herb, you should stick with a fertilizer that you're comfortable putting on a food producing plant, but dilute it to at least half the recommended strength.
Pruning & Trimming
Trim back the new growth to the farthest safe point that looks good to you — but never remove all of the new growth.
A regular trim will help keep your rosemary bonsai tree short, while helping the trunk grow thicker.
Repotting
Repotting must be performed periodically on your bonsai, rosemary included, when its root system has filled the pot. If you can clearly see the roots coming out of the bottom of the pot, it’s time to repot your bonsai.
Generally, this means every 2-3 years for a deciduous tree and every 4-5 years for an evergreen or tropical.
Repotting should be done in mid-summer, when the tree is at it’s least fragile state.
The rosemary bonsai tree, along with all of its soil, should be removed from the pot. From there, you can trim away no more than 1/3rd of the root mass (1/4th is preferred.)
Then you can repot the tree in the same pot, or give it a newer / bigger pot to thrive in.
After repotting, your rosemary bonsai should be thoroughly watered.
Diseases, Insects & Other Pests
Your flowering rosemary bonsai can be treated for pests like a normal rosemary tree. Just remember, your tree is miniature and will need a much smaller and more gentile dose of treatment.
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