Vanda Orchids
Tropical epiphytes from Southeast Asia. The Vandas are active center-zone crop records in Verdify, but the firmware still uses generic zone controls rather than crop-specific Vanda logic. They want warm temperatures, high humidity, strong light, and fast wet/dry cycles. At 5,000 feet in Colorado, the dry air is their biggest enemy.
These orchids came from Fantasy Orchids, a cool local orchid greenhouse in Louisville, Colorado.
Optimal Conditions
| Parameter | Range | Notes |
|---|---|---|
| Day temperature | 75-85F | Tolerates higher than most greenhouse crops |
| Night temperature | 60-65F | Needs warm nights, 15F DIF is ideal |
| VPD | 0.4-0.8 kPa | Low to moderate. High VPD desiccates aerial roots |
| DLI | 10-15 mol/m2/d | Bright indirect. Direct sun can burn leaves |
| Humidity | 60-80% | Critical for aerial root health |
| Watering | Daily soak | Roots dry completely between waterings |
Catalog Entry
Slug orchid; category ornamental.
Cycle —; scientific name —.
Default DLI; default VPD 0.50-0.90 kPa.
Launch Taxonomy
Counts as active control. Occupied center hanging record in v_position_current; Vanda VPD tolerance participates in active crop and zone policy.
Current occupied positions from v_position_current: CENTER-HANG-1.
Target Bands
64.2–75.8°F; 0.35–0.83 kPa; DLI 10.0. Hours covered: 24.
Vandas have a wide temperature range but a relatively low VPD ceiling compared with the canna/south profile. Their center crop profile participates in the active band and center zone target calculation, while center wetting remains governed by generic activity, direct-wet, irrigation, and fertigation tunables.
Zone Recommendation
Primary: Center Zone, mounted
The center zone gets balanced light from all sides and benefits from the fog system, overhead misters, and center clean/fert wetting paths. It is the active orchid location, but it still lacks a dedicated climate, PAR, leaf-wetness, or root-wetness sensor.
Colorado-Specific Challenges
Longmont’s 15% afternoon relative humidity is the opposite of what Vandas evolved for. At these conditions, VPD can spike above 2.0 kPa, which desiccates the aerial roots and halts growth. The greenhouse’s misting and fog systems are critical for Vanda survival.
The trade-off: wetting to support orchids can introduce moisture that other crops may not want. Verdify handles that through per-zone direct-wet windows, fertigation schedules, VPD targets, and scorecard evidence rather than a Vanda-specific firmware branch.
Care Notes
- Watering: Daily morning soak (submerge roots for 10-15 minutes). In summer, twice daily.
- Fertilizer: Weekly, weakly. 1/4 strength balanced orchid fertilizer.
- Light: Bright filtered. The opal polycarbonate is ideal. No direct midday sun on leaves.
- Root health: Green roots = hydrated. Silver-white = thirsty. Brown/mushy = overwatered or rotting.
- Blooming: Requires 15-20F DIF (day-night temperature differential) for 2-3 weeks to initiate spikes.
Where to Go Next
- Center Zone — active hanging orchid location with center misters and clean/fert wetting paths
- Humidity and VPD — how the greenhouse manages the VPD ceiling orchids need
- Growing at 5,000 Feet — altitude and arid air: the core challenge for tropical epiphytes
Current Plantings
CENTER-HANG-1vegetativePlanted 2026-04-02; 47 days in place.
This DB position record is active. The center Vandas participate in active crop/VPD policy; direct plant wetting is still controlled by generic center wetting tunables and drydown gates.
Latest Vision
2026-05-17 18:00greenhouse_2 · east · health 9/10Large orchid plant with extensive aerial roots looks very healthy.
Planting History
CENTER-HANG-12026-04-02 to —— days; final stage vegetative; events 1.