Will Moldy Tulip Bulbs Grow?

Will they still grow? -- Wauwatosa, Wis. A--Though you should definitely avoid buying bulbs that show signs of mold, bulbs that are a little bit moldy might bloom if they are still firm and haven't begun to rot. ... Tulip bulbs should be planted at a depth at least three times their height--preferably four.

How do you treat moldy bulbs?

We learned that when we wash and cut them, we should use HEPA (High Efficiency Particulate Air) filters to take mold spores out of the air. Then if there is mold, use white vinegar, which penetrates and removes roughly 85 percent of mold.

How can you tell if tulip bulbs are bad?

Discard any bulbs that are mushy, moldy or smell bad. Fill a bucket or other container with water and toss in your bulbs. Discard any that float. Bulbs that are rotten inside are lighter than healthy bulbs and float in water.