Snapdragon Potomac Yellow, also known as Antirrhinum majus, is a professional-grade cut flower variety native to China. These plants produce exceptionally tall, strong stems with lengths between 39-60 inches and reach peak quality during periods of long days, high light, and warm temperatures exceeding 60°F. The vibrant yellow flower spikes provide excellent height for landscape borders and professional arrangements.
Potomac Yellow Selling Tips
Sell Snapdragon Potomac Yellow to customers looking for premium, tall line flowers to anchor their summer cut flower gardens or landscape borders. Customers will appreciate the vibrant yellow color and reliable stem strength for professional arrangements, as well as the pollinator friendliness!
General Growing Tips For Your Seedling Tray
It is important to maintain a soil pH between 5.8 and 6.2 and provide a constant liquid feed program of 175 to 225 ppm nitrogen. Daytime temperatures should be kept between 75°F and 85°F and ensure nights stay consistently above 60°F.
Pinching
Snapdragon Potomac Yellow does not require pinching. This variety is specifically bred to produce a single, exceptionally tall flower spike for professional floral use.
Spacing
For professional-grade stems, you'll want to plant Potomac Yellow at a density of 10 to 12 plants per square foot in a greenhouse, high tunnel, or field setting
Pests
You’ll primarily need to scout for aphids and thrips to ensure you're maintaining that high flower quality.
Disease
Potomac snaps are susceptible to downy mildew, botrytis, rust, and powdery mildew.
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.
Snapdragon Potomac Yellow Quick Reference Guide
4 Inch crop time
8-10 Weeks
10 Inch crop time
10-12 Weeks
Bloom Period
Summer, Fall
Color
Yellow
Habit
Upright
Height
39-50 Inches
Light
Full Sun
Minimum Temp
60
Perennial Zone
-
Water Needs
Moderate
Patented Plant
No
Current
Availability
Current Availability
09-14-2026 (Week 38)
0
09-21-2026 (Week 39)
0
09-28-2026 (Week 40)
0
10-05-2026 (Week 41)
0
10-12-2026 (Week 42)
0
10-19-2026 (Week 43)
0
10-26-2026 (Week 44)
0
11-02-2026 (Week 45)
3,200
11-09-2026 (Week 46)
3,200
11-16-2026 (Week 47)
3,200
11-23-2026 (Week 48)
3,200
11-30-2026 (Week 49)
3,200
12-07-2026 (Week 50)
3,200
12-14-2026 (Week 51)
3,200
12-21-2026 (Week 52)
3,200
12-28-2026 (Week 53)
3,200
01-04-2027 (Week 01)
3,200
01-11-2027 (Week 02)
3,100
01-18-2027 (Week 03)
3,200
01-25-2027 (Week 04)
3,200
02-01-2027 (Week 05)
3,200
02-08-2027 (Week 06)
3,200
02-15-2027 (Week 07)
3,200
02-22-2027 (Week 08)
3,200
03-01-2027 (Week 09)
3,200
03-08-2027 (Week 10)
3,200
03-15-2027 (Week 11)
3,200
03-22-2027 (Week 12)
3,200
03-29-2027 (Week 13)
3,200
04-05-2027 (Week 14)
3,200
04-12-2027 (Week 15)
3,200
04-19-2027 (Week 16)
3,200
04-26-2027 (Week 17)
3,200
05-03-2027 (Week 18)
3,200
05-10-2027 (Week 19)
0
05-17-2027 (Week 20)
0
05-24-2027 (Week 21)
0
05-31-2027 (Week 22)
0
06-07-2027 (Week 23)
0
Snapdragon Potomac Yellow, also known as Antirrhinum majus, is a professional-grade cut flower variety native to China. These plants produce exceptionally tall, strong stems with lengths between 39-60 inches and reach peak quality during periods of long days, high light, and warm temperatures exceeding 60°F. The vibrant yellow flower spikes provide excellent height for landscape borders and professional arrangements.
Potomac Yellow Selling Tips
Sell Snapdragon Potomac Yellow to customers looking for premium, tall line flowers to anchor their summer cut flower gardens or landscape borders. Customers will appreciate the vibrant yellow color and reliable stem strength for professional arrangements, as well as the pollinator friendliness!
General Growing Tips For Your Seedling Tray
It is important to maintain a soil pH between 5.8 and 6.2 and provide a constant liquid feed program of 175 to 225 ppm nitrogen. Daytime temperatures should be kept between 75°F and 85°F and ensure nights stay consistently above 60°F.
Pinching
Snapdragon Potomac Yellow does not require pinching. This variety is specifically bred to produce a single, exceptionally tall flower spike for professional floral use.
Spacing
For professional-grade stems, you'll want to plant Potomac Yellow at a density of 10 to 12 plants per square foot in a greenhouse, high tunnel, or field setting
Pests
You’ll primarily need to scout for aphids and thrips to ensure you're maintaining that high flower quality.
Disease
Potomac snaps are susceptible to downy mildew, botrytis, rust, and powdery mildew.
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.
Snapdragon Potomac Yellow Quick Reference Guide
4 Inch crop time
8-10 Weeks
10 Inch crop time
10-12 Weeks
Bloom Period
Summer, Fall
Color
Yellow
Habit
Upright
Height
39-50 Inches
Light
Full Sun
Minimum Temp
60
Perennial Zone
-
Water Needs
Moderate
Patented Plant
No
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