Tuesday, May 6, 2014

Calcium and Boron

This evening I applied 5 pounds per thousand of mid-grade calcitic lime to the lawn.  That will boost the calcium levels somewhat (and therefore raise the pH a little bit), which should be sufficient to offset the normal acidic drift through the season.

Once I finished that, several tablespoons of boron got sprayed on the (currently fallow) gardens. Boron is a touchy micronutrient, so only add it if you know exactly how to calculate the amount to use and only if a soil test tells you that your boron levels are low.

Boron is used in meristem development in the plant--basically, plant stem cells.  Without it, cells don't differentiate well and are less efficient than they should be.  Boron also has many other uses in the plant.

Then the gardens stopped being completely fallow as I planted the cannas and dahlias.  Although still chilly, and with a slight chance of a very patchy frost tonight, both are planted below-ground where temperatures won't drop significantly.

The cannas and dahlias should sprout in about two weeks, with blooming beginning as early as late June.

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