Bonsai Fertilizer

Every 2 weeks during spring and summer while the tree is actively growing, and every 4 weeks in fall and winter. Diluting into your regular watering (1 tsp per quart) matters especially for bonsai — the small soil volume and frequent watering flush nutrients out fast, so steady light feeding replaces what washes away.

At 1 tsp per quart, the 8 oz bottle makes about 48 watering cans of feed. For a typical shelf of 10–15 plants fed every 1–2 weeks in season, that's several months of feeding — and the 32 oz bottle four times that.

Two ways: water the soil with the diluted solution, or submerge the whole pot in it until the soil is saturated, then let the excess drain. Soaking ensures even coverage in a shallow pot and is a common bonsai watering method. Either way, feed on the regular schedule rather than in heavy occasional doses.

Not at this formula's gentle rate. Heavy, high-nitrogen fertilizer is what causes long internodes and oversized leaves that blur a bonsai's form. The balanced 2-2-3 blend supports steady, controlled growth and healthy foliage without forcing the soft surge that ruins refinement — which is why a mild formula suits bonsai better than a strong one.

Yes. Tropical and subtropical bonsai kept indoors (like ficus and jade) and temperate outdoor trees (like maple and juniper) both use this balanced formula. Outdoor deciduous and conifer bonsai slow or go dormant in winter, so ease to the fall and winter schedule and resume regular feeding as growth returns in spring.

No — at the directed dilution, the mild 2-2-3 formula is designed for the confined root zone of a bonsai. Nitrate-based nitrogen and low salt concentration make burn very unlikely. After root pruning or repotting, wait two to four weeks before feeding, then start at half strength for the first two feedings.

Deeper leaf color and healthier growth usually show within a few weeks of regular feeding during the growing season. Because the goal with bonsai is controlled rather than fast growth, the improvement you want is steady vigor and good color — not a growth spurt.