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Xtreme Gardening CalCarb
Xtreme Gardening CalCarb is a calcium carbonate foliar spray for vegetables, fruits, herbs and flowers. It gets two things into the plant through its leaves: calcium and CO2. The calcium carbonate is processed with nanotechnology to a particle size fine enough to pass into the foliage. Once it's absorbed, it converts to calcium oxide and carbon dioxide, and both go to work directly at the cellular level.
Calcium is the first half of CalCarb's job. It's a building block of cell walls and membranes, and normally it travels up from the roots in the water the plant draws. Once it's laid down in tissue it doesn't move back out, which is why fast new growth and developing fruit go short first when uptake can't keep up. CalCarb takes its calcium in through the leaves instead. Xtreme Gardening say it goes towards stronger cell membranes and more resilient foliage, with greater tolerance of heat and drought stress, and that it helps plants recover from damage caused by heat, cold or drought.
The CO2 is the second half. Plants take in carbon dioxide through their stomata, the tiny pores on the leaf, as the raw material of photosynthesis, and CalCarb's CO2 is released inside the leaf as the calcium carbonate converts. Xtreme Gardening say CO2 levels directly outside and inside the stomata can rise about threefold, which they place near the optimum for photosynthesis efficiency!
Powdery mildew and blossom end rot are the two problems CalCarb was built around. Powdery mildew is a fungal disease whose spores travel through the air and spread readily in humid rooms with still air. Xtreme Gardening explain that CalCarb raises the surface pH on damaged foliage to help deter airborne pathogens like these. Blossom end rot isn't an infection at all: it's a calcium disorder, where developing fruit runs short of calcium and its blossom end turns dark and sunken. That calcium link is why Xtreme Gardening count it among the problems CalCarb is made for.
CalCarb starts as a white wettable powder with a naturally occurring compound as its base, mixed with water and sprayed on, indoors or outdoors. One thing it isn't is a Cal-Mag: it contains no magnesium and doesn't replace a Cal-Mag supplement, so a plant short on magnesium still needs one.
Pest and disease claims are the manufacturer's own.
Calcium and CO2 delivered right to the cells, straight through the leaf!
Stronger Cell Membranes
Builds foliage that tolerates heat and drought
Helps Plants Recover
After heat, cold or drought damage
Blossom End Rot Support
May also help prevent powdery mildew
Low Stock - 2 available
Low Stock - 2 available
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Xtreme Gardening CalCarb
Key Highlights
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Key Highlights
- Calcium carbonate processed fine enough to enter through foliage
- CO2 around the leaf stomata can rise about threefold
- Lifts surface pH on damaged foliage to deter airborne pathogens
- Wettable powder that mixes into water for spraying
- Based on a naturally occurring compound
- Suits vegetables, fruits, herbs and flowers
- Works in indoor and outdoor gardens
- Cultivated and packaged in California, USA
Directions for Use
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Directions for Use
Application Rate
- Foliar spray (established plants): 1 teaspoon per 946 ml of water, or 1 tablespoon per 3.79 L
- Foliar spray (flowering and fruiting): 2 teaspoons per 946 ml of water
Application
- Shake well before use.
- For established plants, mix 1 teaspoon per 946 ml of water, or 1 tablespoon per 3.79 L, and spray the underside of the leaves, repeating weekly.
- For flowering and fruiting plants, mix 2 teaspoons per 946 ml of water and apply as targeted pop-shots to the 6 to 12 outermost leaves, avoiding fruit and flowering bodies.
- Apply CalCarb alone and wait 36 hours before applying any other foliar nutrient.
- Clean the sprayer after each use.
- Any white residue left on the leaves can be rinsed off after about 36 hours.
Safety
The safety data sheet gives a minimal hazard class and no hazard statements.
Wear dust goggles and impervious gloves when handling, and a dust mask where particulate concentrations exceed occupational exposure limits.
Keep away from acids, alum, ammonium salts and mercury/hydrogen mixtures. It ignites on contact with fluorine.
Store in a cool, dark, frost-free place.
Typical Analysis
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Typical Analysis
- Calcium (Ca) 31%
Derived From: Calcium Carbonate (CaCO₃)
Resources
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Resources
Shipping & Returns
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Shipping & Returns
Check delivery options for the currently selected item and quantity.
Estimate is for this item and quantity only. Final whole-order freight is confirmed at checkout.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.
Size: 180 g
