A palm tree is best fed with spikes formulated for palms, sized to the trunk's circumference, driven into the ground around the tree, and watered in. A complete palm spike handles routine feeding for up to 12 months, while single nutrient spikes address a specific deficiency.

What makes a fertilizer spike right for a palm?

A formula built for palms, since palms most often run short of potassium, magnesium, manganese, and iron. Palms often grow in sandy soils where nutrients quickly leach away, so a spike placed underground near the feeder roots releases nutrients steadily from that point instead of washing through the soil.

How are palm fertilizer spikes installed?

Around the tree, then watered in. Hammering TreeHelp Complete Palm Fertilizer Spikes into the ground around the palm and watering them in feeds the tree for up to 12 months.

How many fertilizer spikes does a palm need?

For complete palm spikes, the count follows trunk circumference, the distance around the trunk:

• 18 inches: 2 spikes
• 24 inches: 4 spikes
• 36 inches: 6 spikes
• 48 inches: 8 spikes
• 54 inches: 10 spikes

When should a palm be fed with fertilizer spikes?

During the growing season, avoiding late fall and winter. Each spike releases nutrients for up to 12 months, and most landscape palms need feeding only once or twice a growing season.

Frequently Asked Questions

Should spikes be clustered on one side of the palm?

No. Spikes belong around the whole tree, and the TreeHelp Soil Drill, a 9 inch auger bit that fits any standard electric drill, bores holes in a grid pattern around the entire tree.

Do palm fertilizer spikes work on sagos?

Yes. The complete palm spikes are described as keeping a palm tree or sago healthy.

Can complete spikes and potassium spikes be used together?

Usually one after the other. The TreeHelp Palm Potassium Supplement Spikes, which carry 7% magnesium, treat the deficiency first, with maintenance spikes following after treatment.

Which nutrients do complete palm spikes contain?

Potassium, manganese, and magnesium among others. The spikes contain the macro and micronutrients palms need, though the full analysis is not listed.