PRO TIP For larger finished plant height, transplant earlier, providing a longer crop time from pinch to initiation. Spacing and Target Height Control • Crop specifications usually include height, width and bract count. A 6-in. (15-cm) poinsettia is typically spaced 13 to 14 in. (33 to 36 cm) on center, with a finished height of 14 to 16 in. (36 to 41 cm) and a primary bract count of 5 to 6. • Establish final spacing before leaf canopy closes. • Apply shade right after spacing for a few days to avoid stress. • Track height progress through crop cycle to ensure you’re meeting your specifications and apply PGRs as needed.
Scheduling Your Poinsettia Crop Steps to determine when to order your cuttings.
• Phase 1: Allow 2 weeks from transplant to pinch. • Phase 2: See the chart below to determine your weeks from pinch to flower initiation. (We’ve based our timelines on a medium-vigor variety. Varieties with higher or lower vigor may move the pinch dates ahead or behind by 1 week.) • Phase 3: Refer to the charts on pages 34 to 39 to find your weeks from flower initiation to retail-ready crop. • Then, based on your retail-ready date, count backward to determine the week to order your cuttings.
NORTH
CENTRAL
SOUTH
Time for late applications of Bonzi drench
A 6-in. (15-cm) poinsettia is typically spaced 13 to 14 in. (33 to 36 cm) on center
AVERAGE WEEKS FROM PINCH TO FLOWER INITIATION
CULTURE THAT WORKS
WEEKS
NORTH
CENTRAL
SOUTH
0 WEEKS
2" or Mini (1 plant/pot)
2" or Mini (1 plant/pot)
2" or Mini (1 plant/pot)
1 WEEK
4" pot (1 plant/pot)
2 WEEKS
4" pot (1 plant/pot)
6" pot (1 plant/pot)
3 WEEKS
4" pot (1 plant/pot)
6" pot (1 plant/pot)
6.5–7" pot (1–2 plants/pot)
4 WEEKS
6" pot (1 plant/pot)
6.5–7" pot (1–2 plants/pot)
8–8.5" pot (3 plants/pot)
5 WEEKS
6.5–7" pot (1–2 plants/pot)
8–8.5" pot (3 plants/pot)
10" pot (3–5 plants/pot)
6 WEEKS
8–8.5" pot (3 plants/pot)
10" pot (3–5 plants/pot)
12"+ pot (4+ plants/pot)
7 WEEKS
10" pot (3–5 plants/pot)
12"+ pot (4+ plants/pot)
8 WEEKS
12"+ pot (4+ plants/pot)
45
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