The florist’s trick to keep orchids always in bloom: it’s very simple and can also be applied at home

That’s a valuable secret to know! Orchids are prized for their long-lasting, dramatic blooms, and the “florist’s trick” to keep them flowering or encourage reblooming is usually related to providing the precise environmental triggers they need, which mimics their tropical habitat.

The most effective and common trick used by florists that is easily applied at home involves two main factors: temperature shock (to initiate blooming) and precise feeding (to sustain the bloom).

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🌸 The Florist’s Trick: Temperature Shock and Sustained Feeding

The key to forcing a reluctant orchid to rebloom (especially the popular Phalaenopsis or Moth Orchid) is to mimic the slight temperature drop they experience in nature, which signals the start of the flowering season.

1. 🌡️ The Temperature Shock (To Initiate Spikes)

The plant needs a specific cool period to realize it’s time to produce a flower spike instead of new leaves.¹

• The Method: Starting in the fall (late September/early October), move the orchid to a location where the night temperature is consistently $55^\circ\text{F}$ to $65^\circ\text{F}$ ($13^\circ\text{C}$ to $18^\circ\text{C}$). The daytime temperature can be slightly warmer.
• The Crux: This temperature differential (a drop of about $10\text{ degrees}$ at night) should be maintained for about three to four weeks.
• The Result: This cool ‘shock’ will signal the plant to initiate a new flower spike (which looks like a new green stalk emerging from the side of the plant). Once the spike appears, you can move the orchid back to its warmer, regular spot.

2. 🌱 The Feeding Trick (To Sustain Blooms)

Once the orchid is actively growing a flower spike or is already in bloom, the correct fertilizer is critical to keeping the flowers strong and numerous.

• The Formula: Florists often switch to a high-phosphorus (high middle number, P) fertilizer during the blooming phase to support flower production. A ratio like 10-30-20 (or similar) is ideal.
• The Method: Apply the specialized fertilizer, diluted to half or quarter strength, every week while the plant is spiking or flowering.
• The Goal: Regular, weak feeding prevents the orchid from reabsorbing nutrients from the existing buds or dropping established flowers.

💡 General Home Care Tips

• Light: Give the orchid bright, indirect light (east or south-facing window). Too much direct sun burns the leaves; too little light prevents blooming.²
• Watering: Water thoroughly only when the moss or bark is almost dry (usually every 7–10 days). Never let the pot sit in standing water.

Did the florist’s trick you heard about involve temperature manipulation or a specific feeding schedule?

Would you like tips on the best way to cut back the spike after the blooms drop to encourage faster reblooming?