Petchoa is a hybrid plant created by Sakata under the name SuperCal because it combines the best aspects of Petunias and Calibrachoas into one plant. From the petunia side, Petchoas have strong roots and large flowers. From the calibrachoa genes it gets vibrant colors that hold up well in harsh conditions.The early flowering time makes Petchoa a desirable addition to a spring program for those shoppers looking for color before your traditional plants are ready to sell. Grow these plants for beds, hanging baskets, or as flowering cascaders in your combination pots.
Supercal Premium Purple Dawn Selling Tips
'
General Growing Tips For Your Rooted Cutting Liner
For best results with Petchoa, we recommend using a constant feed program of 250-300 ppm N with an EC level between 1.5-2.0. Maintain a pH between 5.5 - 6.0. Extra iron can be applied to promote good leaf color.
Flowering
Grow Petchoa in a cool environment of 50-55F night temperatures. This will help keep the plant compact and encourage a well-toned growth without the use of PGRs. SuperCals can even take heavy frost, which makes them a good choice for cold-frame production. Our production schedule listed below takes into account colder temps. If you are not going to grow in a cold house, you can achieve faster production by 10-14 days.
Pinching
Pinching is recommended 5-10 days after transplantation.
Spacing
Can be grown pot tight in an 1801. Space pots adequately to allow for light penetration and airflow between foliage of adjacent pots. We recommend six inches for 4” pots and eighteen inches for 10” pots.
Height Control
Pinching, growing in cool conditions, and bright light are the best ways to control Petchoa, but they are vigorous and may need PGRs. Greenhouse Product News published the following tips on using PGRs: “Plants respond well to foliar applications of daminozide at 2,500 to 5,000 ppm or paclobutrazol (Bonzi) at 20 to 30 ppm foliar spray or 2 to 3 ppm as a drench. Two to three applications may be required for finishing larger baskets and containers. To maintain optimum flower size, avoid spraying when flower buds are present
Pests
Aphids, leafminers, whiteflies, and thrips are the primary pests attracted to Petchoa.
Disease
Supercal are not prone to many diseases, but watch for botrytis while the days are short. This grey rot is usually associated with wet or humid conditions. You can prevent botrytis by allowing the plant to dry out between waterings, allowing for good airflow in your greenhouse, and spacing to allow the sun to penetrate to the soil level. The most common chemicals used to treat botrytis are Medallion and Banrot. Use them as a drench according to each label’s instructions.
Planting Supercal Premium Purple Dawn Liners
'
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Petchoa Supercal Premium Purple Dawn Quick Reference Guide
4 Inch crop time
6-9 Weeks
10 Inch crop time
8-11 Weeks
Bloom Period
Fall, Spring, Summer
Color
Purple
Habit
Upright
Height
12 inches
Light
Full Sun
Minimum Temp
50
Perennial Zone
9-11
Water Needs
Moderate
Patented Plant
Yes
Current Availability
Current Availability
04-21-2025 (Week 17)
0
04-28-2025 (Week 18)
0
05-05-2025 (Week 19)
0
05-12-2025 (Week 20)
0
05-19-2025 (Week 21)
200
05-26-2025 (Week 22)
5,700
06-02-2025 (Week 23)
4,900
06-09-2025 (Week 24)
1,800
06-16-2025 (Week 25)
1,000
06-23-2025 (Week 26)
1,100
06-30-2025 (Week 27)
1,000
07-07-2025 (Week 28)
300
07-14-2025 (Week 29)
400
07-21-2025 (Week 30)
800
07-28-2025 (Week 31)
500
08-04-2025 (Week 32)
1,100
08-11-2025 (Week 33)
1,200
08-18-2025 (Week 34)
1,100
08-25-2025 (Week 35)
1,400
09-01-2025 (Week 36)
1,100
09-08-2025 (Week 37)
1,400
09-15-2025 (Week 38)
1,400
09-22-2025 (Week 39)
1,400
09-29-2025 (Week 40)
1,200
10-06-2025 (Week 41)
1,200
10-13-2025 (Week 42)
1,400
10-20-2025 (Week 43)
1,400
10-27-2025 (Week 44)
1,400
11-03-2025 (Week 45)
1,300
11-10-2025 (Week 46)
2,800
11-17-2025 (Week 47)
3,600
11-24-2025 (Week 48)
4,300
12-01-2025 (Week 49)
5,100
12-08-2025 (Week 50)
8,100
12-15-2025 (Week 51)
9,200
12-22-2025 (Week 52)
10,200
12-29-2025 (Week 01)
10,300
01-05-2026 (Week 02)
10,300
01-12-2026 (Week 03)
0
Petchoa is a hybrid plant created by Sakata under the name SuperCal because it combines the best aspects of Petunias and Calibrachoas into one plant. From the petunia side, Petchoas have strong roots and large flowers. From the calibrachoa genes it gets vibrant colors that hold up well in harsh conditions.The early flowering time makes Petchoa a desirable addition to a spring program for those shoppers looking for color before your traditional plants are ready to sell. Grow these plants for beds, hanging baskets, or as flowering cascaders in your combination pots.
Supercal Premium Purple Dawn Selling Tips
'
General Growing Tips For Your Rooted Cutting Liner
For best results with Petchoa, we recommend using a constant feed program of 250-300 ppm N with an EC level between 1.5-2.0. Maintain a pH between 5.5 - 6.0. Extra iron can be applied to promote good leaf color.
Flowering
Grow Petchoa in a cool environment of 50-55F night temperatures. This will help keep the plant compact and encourage a well-toned growth without the use of PGRs. SuperCals can even take heavy frost, which makes them a good choice for cold-frame production. Our production schedule listed below takes into account colder temps. If you are not going to grow in a cold house, you can achieve faster production by 10-14 days.
Pinching
Pinching is recommended 5-10 days after transplantation.
Spacing
Can be grown pot tight in an 1801. Space pots adequately to allow for light penetration and airflow between foliage of adjacent pots. We recommend six inches for 4” pots and eighteen inches for 10” pots.
Height Control
Pinching, growing in cool conditions, and bright light are the best ways to control Petchoa, but they are vigorous and may need PGRs. Greenhouse Product News published the following tips on using PGRs: “Plants respond well to foliar applications of daminozide at 2,500 to 5,000 ppm or paclobutrazol (Bonzi) at 20 to 30 ppm foliar spray or 2 to 3 ppm as a drench. Two to three applications may be required for finishing larger baskets and containers. To maintain optimum flower size, avoid spraying when flower buds are present
Pests
Aphids, leafminers, whiteflies, and thrips are the primary pests attracted to Petchoa.
Disease
Supercal are not prone to many diseases, but watch for botrytis while the days are short. This grey rot is usually associated with wet or humid conditions. You can prevent botrytis by allowing the plant to dry out between waterings, allowing for good airflow in your greenhouse, and spacing to allow the sun to penetrate to the soil level. The most common chemicals used to treat botrytis are Medallion and Banrot. Use them as a drench according to each label’s instructions.
Planting Supercal Premium Purple Dawn Liners
'
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Petchoa Supercal Premium Purple Dawn Quick Reference Guide
4 Inch crop time
6-9 Weeks
10 Inch crop time
8-11 Weeks
Bloom Period
Fall, Spring, Summer
Color
Purple
Habit
Upright
Height
12 inches
Light
Full Sun
Minimum Temp
50
Perennial Zone
9-11
Water Needs
Moderate
Patented Plant
Yes
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