High humidity during flowering can lead to stunted bud development, a loss of resinous oils and odor as well as the increased risk of fungal diseases such as White Powdery Mildew or bud-rot which thrives in high humidity and can devastate a crop.
Why would I foliar feed during flowering?
Prepare your spray bottle with your nutrients solution containing 25% of the recommended dosage, to begin with, carefully spray the leaves of your plants, including the underside of the leaf trying to avoid spraying the buds directly, this should be repeated at the same strength for up to three weeks.
Cannabis will secrete a sticky resin to act as insulation for when the environment is hot and dry, this helps to keep the plant cool and locks in essential moisture.
- Increase airflow and lower temperature/humidity.
- Spray with a fine-mist spray bottle.
- Mist at least once per day in the early morning, preferably an hour before the lights come on.
- Make sure that you are using soil or hydro nutrients, packed with micronutrients for maximum benefit.
- Mix nutrients at 25 – 50% of their described strength.
- Spray the entire cannabis plant.
- Stop misting 3 weeks into the flowering stage.
Well, the main reason growers foliar feed during this stage of growth is usually to treat a nutrient deficiency such as Potassium/Phosphorus, to treat an aphid infestation or to cure fungal diseases such as White Powdery Mildew which can ruin a crop if present during the flowering stage.
If after the first week there is no sign of improvement for the deficiency, you should increase the concentration of the nutrients by a further 25% until the defect is remedied.
When a cannabis plant begins to enter the flowering stage, it is generally advised that you stop foliar feeding after the third week of flowering.
If you need to foliar spray feed during flowering, you will be increasing the humidity levels quite significantly.
Foliar Spray During Flowering? Should I Foliar Spray During Flowering? Foliar feeding is an excellent way to provide vital minerals and essential nutrients directly to your plants
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Foliar feeding works wonders when it comes to raising your plants to their full potential, but only when they are vegging or in the first few weeks of flowering. You don’t want to foliar feed your plants with developing buds and risk nutrient residue contaminating your hard work.
Foliar feeding cannot replace all other types of feeding, but it’s a great tool for cannabis growers to have on-hand, especially when plants exhibit signs of deficiency.
Protect your garden by first spraying one plant and see how it responds before you spray other plants that look ill. Note that the damaged leaves will not recover, but new growth will appear vibrant and strong, and aging leaves will appear more colorful.
Make a Proper Nutrient Solution
Once again, if you notice any plants showing signs of nutrient deficiencies, foliar feeding is a great solution. Plants most commonly display calcium/magnesium deficiency or a nitrogen deficiency, which can be remedied with a quick foliar spray.
When to Use Foliar Spray
Avoid spraying your plants under full sunlight or bright indoor lights in order to prevent the liquid droplets from magnifying the light source and burning your plants. Also, the stomata are less dilated during the middle of the day in peak heat.
To use foliar feeding correctly, you’ll first need to understand a few foundational tips and tricks.
Foliar feeding is a process that can help plants absorb nutrients quickly. Learn all about how to foliar feed your cannabis plants to help them grow healthier.