Jack's Classic Houseplant Special (15-30-15) testkits with the same accuracy and

with the same accuracy and safety protections across your entire set-up

Powerful bait that is highly attractive to slugs and snails

Higher C:N ratio from ideal conditions promotes higher sugar content in ripening flowers

It has a low bulk density and is neutrally buoyant meaning it won’t sink to the bottom of the soil or float to the top

Jack's Classic Houseplant Special (15-30-15) testkits with the same accuracy andJacks Classic Houseplant Special 15 30 15 is our traditional indoor houseplant fertilizer designed for use on all foliage and flowering plants. Professional growers prefer the 1 2 1 ratio fertilizer used for over 50 years to keep indoor grown plants vigorous and green. Great for long term plants! Used in a constant feed system, it keeps the nutrition levels constant preventing nutrient stress from over or under feeding. This product can also be used