CannaRed
Cannabinerd
@cannared Yucca from your Friend's yard is probably fine. A small amount of yucca goes a long ways, 1/16 of a teaspoon is all thats recommended for 5 gallons of water.
Here is a link about Yucca from Haley Smith:
https://www.maximumyield.com/yucca-extracts-a-gardening-secret-from-the-desert/2/1236
Foliar feeding can give plants a direct boost of nutrients through their leaves. This is done by means of thousands of microscopic pores on leaf surfaces. These openings, called stomata (Greek: stoma, meaning “mouth”) are located primarily on the underside of the leaves. This prevents them from plugging up with dust and other environmental contaminants and also prevents fungal spores from entering. The primary functions of stomata openings are to permit gases containing carbon, hydrogen and oxygen to enter the plant. These are then used to manufacture sugars during photosynthesis. Conversely, stomata allow water vapor to escape from plants. In most cases, stomata close at night because the absorption of carbon dioxide is unnecessary when photosynthesis is not taking place. Stomata may also close on hot, dry days, in heavy winds or when the soil becomes dry.
The best time to spray is late in the afternoon or in the early dawn, when temperatures are mild and wind is minimal. When wind is minimal, finely atomized sprays drift readily. This is most desirable. Absorption is further enhanced when weather conditions are humid and moist. The presence of dew on leaves facilitates foliar feeding. Absorption is maximized when sprays coat the underside of leaves where the majority of the stomata are located.[/B]
So maybe spray leaves with water first and then come back and foliar?