Vinca
Angelonia
Lantana & Zinnias
Cool-Season
Crops
Specialty Crops
100

This common alternate name is often used for vinca.

What is periwinkle?

100

Angelonia is most commonly propagated using this method.

What are cuttings?

100

These pollinators are strongly attracted to lantana flowers.

What are butterflies & Hummingbirds?

100

This cool-season bedding plant is highly frost tolerant and provides reliable spring carryover.

What are Pansies?

100

These non-flowering vascular plants reproduce by spores.

What are Ferns?

200

This greenhouse condition is especially critical because vinca requires twice as much air movement as many other crops.

What is strong air circulation? 

200

Growth slows dramatically when temperatures fall below this point.

What is 50 Degrees?

200

This disease commonly affects zinnias.

What is powdery mildew?

200

This crop performs best under long days and cool conditions and offers nearly every flower color except yellow.

What is Dianthus? 

200

These holiday plants are tropical epiphytic cacti native to Brazil.

What are christmas cactus? 

300

This propagation material is considered necessary for successful seed-starting of vinca.

What is vermiculite? 

300

Recommended light levels for angelonia fall within this range.

What is between 2,000 and 5,000 foot candles? 

300

Excessive fertilization causes lantana to stop doing this.

What is flowering? 

300

This vertical cool-season crop can bloom 8–10 weeks and is commonly pinched at the 4th and 6th node.

What are snapdragons? 

300

These bulbs require 6 weeks of chilling at 35–43°F before planting.

What are Easter Lilies?

400

Nighttime greenhouse temperatures should remain at least this warm for proper root formation.

What is 70 degrees?

400

Drought stress is intentionally used in angelonia production to control this.

What is excessive vegetative growth (slow plant growth)?

400

Zinnias should ideally be directly seeded this many weeks before first frost.

What is about 4 weeks? 

400

Pansies should be watered down to this moisture level before allowing media to dry completely.

What is level 3 - 4 moisture? 

400

This fern nutritional issue commonly develops when pH becomes too high.

What is iron deficiency? 

500

This greenhouse mistake often causes damping-off in vinca.

What is overwatering? 

500

With one pinch, a 1-gallon angelonia crop finishes in approximately this amount of time from rooted liner.

What is 5-7 weeks?

500

Zinnia seeds germinate best at approximately this soil temperature.

What is 70 degrees?

500

Snapdragons often require supplemental applications of these two micronutrients.

What are boron and iron?

500

This greenhouse practice is required for Christmas cactus at blackout to improve bud formation.

What is pinching off small buds?