Hoya carnosa 'Compacta' Not Blooming: pH, Pot Size, and Fertilizer

A curly‑leaf Hoya (Hoya carnosa 'Compacta') at pH 5.5 is within range (5–6.5). To raise pH slightly, dissolve 1 tbsp baking soda in 1 quart water for a couple waterings.

Bloom Triggers

• Keep potbound—don’t repot larger.
• Use a bloom‑boost fertilizer (high phosphorus).
• Sprinkle 2 tsp Epsom salts (magnesium sulfate) on soil, then water.
• Increase humidity and sun; don’t cut long “bloom spurs.”

Low light and low humidity are common reasons for no flowers.