University of Florida

2011 Advent Red - Natural Days

Growth Regulators Applied / Height graph

Graph shows projected plant heights during production of the crop. Dots are plotted actual height each week. Arrows indicate when PGRs are applied with details in the weekly notes. We use the “late” graphical tracking curve and heights are from bench to height of growing tip. Heights are plotted from date of pinching to projected date of finish.

2011 growth chart for Advent Red Natural Days poinsettia


Advent Red Natural Days 11-111/1

This crop of Advent Red has finished on time and the plants are showing pollen this week. The bract appearance will be better with a few more days of development. As in past two years, this crop has shown that Advent is capable of significant elongation in a short period when it starts growing out of the effect of a PGR application. However, it is more sensitive to PGRs than most other varieties. The spray applied a week after pinching helped control early growth. The Bonzi drench on 10/18 after bracts were developing was at only 0.2 ppm and worked well to bring the plants in at the desired heights.

Advent Red Natural Days 10-2510/25

We got a very good response to the 0.2 ppm drench applied last week. The crop should finish fine now and we have not used very much PGR during bract expansion.

Advent Red Natural Days 10-1810/18

In hindsight, we wish we had treated this crop last week. The plants look good and should finish on time. We are applying a Bonzi drench this week. The rate is 0.2 ppm, which is a low rate for a late drench. We are hoping that Advent will be sensitive enough along with the cooler day temperatures that we only get 2" of elongation in next 2 weeks.

Advent Red Natural Days 10-1110/11

As wanted, this crop of Advent resumed elongation this past week. We were very temped to make another Bonzi drench this week, but decided not to. Weather should be seasonably warm. We expect this crop to be close to 14" next week and will likely make a final Bonzi application then.

Advent Red Natural Days 10-410/4

These Advent are showing first color this week which is similar to last year. The plants are showing the effects of the PGRs and we know this is a sensitive variety. However, the past 2 years it has shown the ability to elongate by 1 to 2 inches per week in Oct. The temperatures this next week should be about average. We hope the plants will grow about 1 inch.

Advent Red Natural Days 9-279/27

This crop of Advent is in good shape at this time. The plants are on the verge of first color and we may be able to finish the crop with only one more PGR application.

Advent Red Natural Days 9-209/20

These plants look good and are growing at a good pace. To keep this vigorous variety under control we are applying a Bonzi early drench at 0.1 ppm this week.

Advent Red Natural Days 9-139/13

Heights on this crop of Advent are very good at this stage. We will see how they develop now.

Advent Red Natural Days 9-69/6

These Advent look good and we are at a better situation on heights than in our 2 previous years. Even though heights are good now, we are spraying again this week with the medium rate of B-Nine and Cycocel (1,500 ppm and 1,250 ppm). Due to the vigor of this variety, we want to keep some control over elongation the next couple of weeks.

Advent Red Natural Days 8-308/30

The past 2 years Advent was more than an inch over the line 2 weeks after pinch. So, we are pleased at the response to the spray applied last week. The plants look good and we will see where they are next week.

Advent Red Natural Days 8-238/23

Just as we expected, these plants have gotten off to a fast start. We are applying a spray of B-Nine and Cycocel at the medium rate of 1,500 and 1,250 ppm, respectively. Hopefully this will slow down the early growth.

Advent Red Natural Days 8-168/16

Advent Red finishes very early and does well in our heat. It is a strong growing plant but it is sensitive to the PGR's. Previous examples were 2010 on natural days and 2009 delayed. So, we can finish a good crop, but we will plan to apply a first spray next week to reduce the amount of early growth we have seen in the past.