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Home > Fertilizer

Fertilizer

Tips for late summer

August 27, 2021 by Jonas Dupuich

When everything goes well, there isn’t a lot of bonsai work this time of year. Deciduous trees are recovering from their last pruning of the season, decandled pines are filling in, and tropical bonsai are getting their final cutback of the season. That said, the next month is pivotal for improving and maintaining tree health. […]

When ignorance was bliss – and good for my bonsai too

August 18, 2020 by Jonas Dupuich

There has been a lot of enthusiasm lately for the scientific side of bonsai. I’ve been a part of this, sharing stories, for example, of testing and acidifying water in an attempt to green up my garden. I started pursuing the topic when I noticed how much harder it had become to keep my pines […]

Tips for applying liquid fertilizer

September 17, 2019 by Jonas Dupuich

Liquid fertilizer is a great way to provide nutrition for your bonsai. I’ve been using fish-based fertilizers for years and although it’s smelly, it’s effective and offers control when I want to limit how much fertilizer each tree gets. Fish emulsion While it’s easy to dilute concentrated fertilizer and apply it to your bonsai, there […]

The effect of fertilizer on water pH

August 13, 2019 by Jonas Dupuich

A hidden benefit of many fertilizers is their ability to lower the pH of the water. Had I kept this in mind this past spring, my trees would be a lot greener today. Looking back on my fertilizing habits, I shouldn’t have been surprised that my pines remained yellow despite repeated fertilizer applications. I changed […]

Summer fertilizing

August 10, 2018 by Jonas Dupuich

There are a number of good reasons to fertilize bonsai in summer: The tree is young and the goal is to thicken the trunk The tree requires nutrition to recover from – or prepare for – defoliation and decandling The growing season is short and waiting until fall to fertilize is too late As I have […]

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