Yes, Pennington All Purpose Fertilizer 10-10-10 can be used on hibiscus.
Granular fertilizers generally have a shelf life of 3 years if stored in cool dry place in an airtight container or securely closed. Do not keep stored in areas where there is alot humidity or exposure to extreme heat or freezing temps.
Please note: Pennington All Purpose Fertilizer 10-10-10 is now discontinued.
No, the Pennington All Purpose Fertilizer 10-10-10 is applied with any spreader and then mixed lightly into the surface of the soil then immediately watered in. This is not for potted or containerized plants.
An alternative fertilizer is the Miracle Gro Water Soluble All Purpose Plant Food that can be mixed with water and applied with a watering can for individual plants or using the Miracle-Gro Garden Feeder.
