Replacing water for Hycinth bulb vase
We have a hycinth bulb suspended in a glass jar filled with water on a south
facing window sill.
After a week or so the water develops a green algae on the bottom of the jar
and a pale greenish tinge to the water colour.
Would this algae contain nutrients *useful* for the descending bulb roots,
or are we better tipping away the water and replacing with fresh water every
few days. Thanks.
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