POINSETTIA

Alpina

As one of the whitest poinsettias on the market, Alpina provides early-season color ideal for week 47 sales. Plus, the medium vigor works well in many pot sizes.

Plant Vigor: Medium
Vigor
V-Shaped Habit: Normal
Habit
Response Time in Weeks:
  7.5
Characteristics
Season:Early Season
Foliage:medium green
Natural Flower (first pollen):Nov. 16-20
Response Time in weeks (first pollen):7.5
Vigor:medium
Habit:normal
Average Bract Size:large, pointed
Post Harvest:good
Finishing Recommendations
Energy Efficient:

Varieties are rated from most () to least () efficient. Contact us for guides.

Cool Finish (24 hrs avg.):63°F / 17°C

Indicates minimum temperature starting two weeks after the beginning of short days. Please note that a crop grown cooler requires more time to finish (4 to 7 days), and will have smaller bracts and darker color (for example, white may turn cream-yellow). Toward the end of the crop (two weeks prior to shipping), slowly lower the temperature for green-leafed varieties to 65°F (18°C) day/night and dark green-leafed varieties to 63°F (17°C) day/night.

Space Efficient:

Varieties are rated from most () to least () efficient. Contact us for guides.

Recommended spacing for 6":13"x13"
Containers
2.5" Mini
4 - 5"
6"
8"
10"
Tree/Pyramid
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GARY’S
NOTES
“Alpina is a great early-season, true white variety, but avoid keeping cool for long periods to maintain brightness of the white color.”

CULTURE THAT WORKS

propagation

• Roots rapidly; plant from liner at 22-24 days
• Apply rooting hormone to the base of cutting
• Start feed program around day 7
• More moderate vigor level than some others; may not require PGR application in propagation
• Important to plant from liners into finished container as soon as they are well rooted
• Branches aggressively, very early and will branch based on leaf maturity, not just pinch
• Failure to feed early enough will result in yellowing and hardening of liner; some early feeding in propagation is recommended

early finished growth

• Strong-branched variety must be pinched early: at day 12-14 from a liner; at day 22-24 for direct-stick
• Failure to pinch early will result in uneven branching; important to pinch leaving only as many leaves as you need branches; will produce a branch at every node
• Apply light PGR when branches are 1-1.5 in. (2.5-4 cm) using Cycocel spray at 500 ppm or 750 ppm; recommended to even out the branches

growing on

• Grows steadily once the branches develop and exhibits consistent moderate growth throughout the crop until color begins
• Northern Climate: PGR should be limited to only Cycocel spray at 500 ppm
• Southern Climate: Can use Cycocel spray up to 1,000 ppm
Use 1-2 spray applications of B-Nine (1,000 ppm)/Cycocel (500 ppm) before September 20
• Avoid late applications of PGR as they can affect the whiteness and size of the bract

late growing stages

• Strong root system; requires continuous feed until finish
• Watch media EC; reduce feed levels to avoid rapid increase in media EC as this indicates the plants need for nutrition is waning
• High EC at finish can result in root damage, reduced shelf life and possible Pythium 
• Can be held cool but will reduce whiteness; pay attention to the humidity and avoid dew point to prevent Botrytis

  • Poinsettia Alpina
Poinsettia Alpina
'LAZZPO1315'
PP29,224
(Flowering Only License)
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