As you work to deliver extraordinary plants to your customers, plant growth regulators (PGRs) play a pivotal role in ensuring consistent and optimal plant development.
Need help deciding what PGR product to use on your plants? Let us know what type of plants you are growing.
A-Rest
After Transplanting
8 - 15 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 ppm sprench at radicle emergence, 3 -7 ppm spray after true leaves emerged
Topflor
Spray
40-80 ppm: 40 ppm Topflor > 30 ppm Bonzi = 5 ppm Sumagic
A-Rest
After Transplanting
not recommended
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 8 - 16 ppm spray (begin applying when plugs are at full stand)
Topflor
Spray
60-80 ppm: 60 ppm Topflor = 80 ppm Piccolo. Topflor controlled diameter growth where Piccolo did not.
Topflor
Dip
4 ppm (10 min): 4 ppm Topflor = 16 ppm Piccolo
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
Topflor
Spray
75 ppm: 75 ppm Topflor = 40 ppm Sumagic
A-Rest
After Transplanting
6 - 16 ppm spray (1 - 2 weeks after transplanting)
A-Rest
On Hanging Baskets
1/2 - 1 ppm drench (after a good root system has developed after final transplanting)
A-Rest
On Plugs (If Needed)
3 - 5 ppm spray (as needed)
Topflor
Drench
6 ppm drench after first shear when plant fills pot
Topflor
Drench
2 - 3 ppm
Topflor
Spray
75 ppm: Recommend split into to apps of 38 pp
Topflor
Spray
2.5 - 10 ppm: 10 ppm Topflor = 30 ppm Bonzi = 5 ppm Sumagic
Topflor
Dip
20 - 40 ppm (10 min):
Topflor
Drench
4.25 - 17 ppm: Assumes 4 fl oz of solution/pot
Topflor
Spray
10 - 30 ppm: Similar activity to Bonzi
Topflor
Drench
Tone: 3 ppm Stop: 5 ppm
Topflor
Spray
8 - 20 ppm: 15 ppm Topflor = 30 ppm Bonzi
Topflor
Drench
3 ppm x 2: 2nd drench followed 2 week after initial, dependent on vigor
Topflor
Spray
20 - 30 ppm: Topflor plants flowered quicker than Bonzi.
A-Rest
After Transplanting
10 - 15 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 5 - 10 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Spray
20 - 80 ppm: 40 ppm Topflor = 30 ppm Bonzi
Topflor
Spray
50 - 100 ppm: 7 days after pinch
Topflor
Spray
15 - 25 ppm
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
A-Rest
After Transplanting
15 - 26 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 7 - 12 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
A-Rest
After Transplanting
12 - 20 ppm spray (apply when needed to check growth)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 7 - 12 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Dip
.25 - .5 ppm (30 sec):
Topflor
Drench
1 - 4 ppm
Topflor
Spray
20 - 60 ppm: 40 pppm Topflor > 30 ppm Bonzi and 5 ppm Sumagic
Topflor
Spray
20 - 80 ppm
A-Rest
After Transplanting
Not recommended.
A-Rest
On Plugs
6 - 10 ppm sprench at seeding, 10 - 25 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
Topflor
Drench (Recommended)
4.25 - 25 ppm: Topflor has rate advantage over Bonzi. Assumes 4 fl oz of solution 6"pot
Topflor
Spray
10 - 40 ppm
A-Rest
After Transplanting
12 - 24 ppm spray (7 - 10 days after transplanting) or 1 - 3 ppm drench on pots or baskets
A-Rest
Bedding Plants (Holding)
15 - 26 ppm spray or 2 - 4 ppm drench
A-Rest
Before Transplanting
10 - 15 ppm spray (one week before transplanting)
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 7 - 12 ppm spray (after appearance of 2 - 3 true leaves)
A-Rest
After Transplanting
15 - 26 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 10 - 15 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Spray
30 - 60 ppm: Use 40 ppm in the north and 60 ppm in the south
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
A-Rest
After Transplanting
7 - 12 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 5 - 10 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Dip
0.5 - 2 ppm (30 sec): Use 0.5 ppm in the north and 2 ppm in the south
Topflor
Spray
20 ppm: 20 ppm Topflor = 35 ppm Bonzi = 10 ppm Sumagic
Topflor
Dip
2.5 ppm (5 min): Very variable. Depends on bulb hydration
Topflor
Drench
3.4 ppm: Very variable. Depends on bulb hydration. Assumes 4 fl oz of solution/pot Very variable. Depends on bulb hydration
Topflor
Spray
80 - 160 ppm: Very variable. Depends on bulb hydration
Topflor
Spray
45 ppm: Can use 2 sequential 22 ppm apps
Topflor
Sprench
< 11 ppm:
Topflor
Spray
30 ppm: 30 ppm Topflor = 60 ppm Bonzi = 15 ppm Sumagic
Topflor
Drench
4 ppm:
Topflor
Spray
30 - 90 ppm: Depends on aggressiveness of variety. Equal to Bonzi and Sumagic
Topflor
Drench
0.085 - 0.51 ppm: Assumes 4 fl oz of solution/pot
Topflor
Spray
30 - 60 ppm:
Topflor
Spray
10 - 12.25 ppm:
Topflor
Drench
4 ppm:
Topflor
Spray
20 ppm:
A-Rest
After Transplanting
33 - 66 ppm spray (3 - 7 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 26 - 35 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Spray
10 - 20 ppm: 10 ppm Topflor = 15 ppm Bonzi
Topflor
Drench
1 - 2 ppm:
Topflor
Spray
40 - 80 ppm: Can use 2 sequential 20 ppm apps
Topflor
Dip
20 - 25 ppm (10 min):
Topflor
Drench
3 - 5 ppm:
A-Rest
After Transplanting
20 - 33 ppm spray (5 - 7 days after transplanting) or 2 - 4 ppm drench
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 10 - 20 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Spray
40 - 120 ppm: 40 ppm Topflor = 30 ppm Bonzi = 5 ppm Sumagic
Topflor
Drench
Tone: 1 ppm
Topflor
Drench
2 - 4 ppm
Topflor
Spray
20 - 50 ppm
Topflor
Spray
20 ppm
Topflor
Drench
1 - 1.5 mg ai/pot: Equal to Bonzi. Assumes 4 fl oz of solution/pot
Topflor
Dip
10 - 50 ppm (1 min): Clear advantage over Bonzi (> 300ppm)
Topflor
Dip
25 ppm (10 min)
Topflor
Drench
4.25 ppm: Can use 2 sequential 0.25 mg/ai spaced 1 week apart. Assumes 4 fl oz of solution/pot
A-Rest
After Transplanting
10- 15 ppm spray (7-10 days after transplanting)
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 7 - 12 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
Topflor
Spray
SOUTH: Spray at finish to prevent runners/tangleing in nursery. 20ppm = 3 week hold. 30ppm = 4 week hold
A-Rest
After Transplanting
18 - 26 ppm spray (5 - 7 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 13 - 20 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Spray
30 - 80 ppm: 40 ppm Topflor = 30 ppm Bonzi = 5 ppm Sumagic
Topflor
Drench
2 - 3 ppm
Topflor
Spray
75 ppm: Recommend split into to apps of 38 ppm. 75 ppm Topflor = 120 ppm Bonzi = 20 - 25 ppm Sumagic
Topflor
Spray
5 ppm
Topflor
Drench
4 ppm
Topflor
Spray
10 - 20 ppm: Recommend split apps of 10 ppm
Topflor
Spray
10 - 20 ppm
Topflor
Spray
30-80: Rate advantage over Bonzi
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
A-Rest
After Transplanting
8 - 10 ppm spray (7 - 10 days after transplanting)
A-Rest
Bedding Plants (Holding)
11 - 15 ppm spray
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 3 - 7 ppm spray (after appearance of 3rd true leaf)
Topflor
Spray
Tone: 2 - 3 ppm Hold: 5 ppm Stop: 7 ppm: Topflor has rate advantage over Bonzi
Topflor
Drench
Tone: 0.95 mg of a.i.: Apply when foliage is 1" above soil
A-Rest
After Transplanting
15 - 20 ppm spray (5 - 7 days after transplanting), 1 - 2 ppm drench (apply after root system is established)
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 10 - 15 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Dip
1 - 2 ppm (30 sec)
Topflor
Drench
5 ppm x 2: After transplant - Be cautious of double waves and red due to sensitivity
Topflor
Drench
Tone: 2 - 3 ppm Hold: 4 ppm Stop: 6 ppm: 1 - 2 weeks after transplant = 2 - 3 week hold
Topflor
Spray
30 ppm: general starting rate in northern climate
Topflor
Spray
40 - 120 ppm: Topflor at 40 ppm = Bonzi at 30 ppm
A-Rest
After Transplanting
10 - 15 ppm spray (7-10 days after transplanting)
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 7 - 12 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Drench
4 ppm
Topflor
Spray
30 ppm
Topflor
Drench
5 ppm
Topflor
Drench
0.10 ppm - 0.20 ppm: two to four weeks after pinch. See SePRO poinsettia guide
Topflor
Spray
7 ppm - 15 ppm: To slow down before color
A-Rest
After Transplanting
15 - 20 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 10-15 ppm spray (after appearance of 3 - 4 true leaves)
Topflor
Spray
40 - 80 ppm: Topflor has rate advantage over Bonzi
Topflor
Spray
45 - 60 ppm: 45 ppm Topflor = 45 ppm Bonzi = 15 ppm Sumagic
Topflor
Sprench
11 ppm
A-Rest
After Transplanting
20 - 26 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 15 - 20 ppm spray (after appearance of 1st true leaf)
Topflor
Dip
> 1 ppm
Topflor
Spray
30 ppm: North
Topflor
Spray
60 - 120 ppm: Southern zone
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
Topflor
Spray
30 - 45 ppm: 30 ppm Topflor = 30 ppm Sumagic
Topflor
Dip
.5-1 ppm (30 sec)
Topflor
Dip
4 ppm (10 min.): 4 ppm Topflor = 9.3 ppm paclobutrazol
Topflor
Drench
4 ppm
Topflor
Spray
20 - 40 ppm
Topflor
Drench
4 ppm
Topflor
Spray
75 - 120 ppm: Similar response with split apps. 75 ppm Topflor = 120 ppm Bonzi = 45 ppm Sumagic
A-Rest
After Transplanting
not recommended
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 12 - 20 ppm spray (after appearance of 1st true leaf)
Topflor
Dip
1 ppm: Topflor is comparable to Sumagic and has a rate advantage to Bonzi
Topflor
Drench
2 ppm
Topflor
Spray
15 - 40 ppm: Topflor has rate advantage over Bonzi
Topflor
Spray
20 - 40 ppm: Use 20 ppm in the north and 40 in the south
Topflor
Dip
0.17 - 1 ppm: Assumes 4 fl oz of solution/pot
Topflor
Drench
9 ppm (2 min)
Topflor
Spray
5 - 20 ppm
Topflor
Drench
17 ppm: Topflor is similar to Bonzi. Assumes 4 fl oz of solution/pot
Topflor
Drench
4 ppm
Topflor
Spray
20 ppm
Topflor
Dip
30 ppm
Topflor
Drench
4 ppm
Topflor
Dip
25 ppm (10 min): 25 ppm Topflor = 50 ppm Bonzi = 10 ppm Sumagic
Topflor
Drench
4 ppm: 0.5 mg ai Topflor = 1 mg ai Bonzi
A-Rest
After Transplanting
15 - 26 ppm spray (7-10 days after transplanting)
A-Rest
On Plugs
6 - 10 ppm sprench at radicle emergence, 12 - 20 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Drench
4 ppm
Topflor
Spray
20 - 40 ppm: 20 ppm Topflor = 40 ppm Bonzi. Flowering delay
Topflor
Drench
6 ppm
Topflor
Spray
45-60 ppm
A-Rest
After Transplanting
10 - 20 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 7 - 16 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Dip
1 ppm: Topflor is comparable to Sumagic and has a rate advantage to Bonzi
Topflor
Spray
5 - 10 ppm
A-Rest
After Transplanting
8 - 10 ppm spray (7 - 10 days after transplanting)
A-Rest
Bedding Plants (Holding)
11 - 15 ppm spray
A-Rest
On Plugs
2 - 6 ppm sprench at hook, 3 -7 ppm spray (after appearance of 3rd true leaf)
A-Rest
After Transplanting
10 - 15 ppm spray (7 - 10 days after transplanting)
A-Rest
On Plugs
2 - 6 ppm sprench at radicle emergence, 7 - 12 ppm spray (after appearance of 1 - 2 true leaves)
Topflor
Spray
20 - 60 ppm: 30 ppm Topflor = 40 ppm Bonzi
Topflor offers unmatched versatility for both vigorous and slow-growing species, being cost-effective and efficient in both drench and foliar spray applications.
A-Rest the go-to PGR for plugs, transplants, and perennials, ensures compact growth with vibrant leaves and no adverse effects on blooms. Both ensure your plants are robust and ready for transplanting and shipping.
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