Dahlia 'Black Jack'Plant
A dramatic, deep burgundy dinnerplate Dahlia with large blooms, low-yielding but stunning with edible petals for stress-relieving displays.
Habit
Perennial
Height
4-5 ft
Growth
Moderate
Soil
Loamy, well-drained
Shade
Full Sun
Moisture
Moderate
Edible
Yes (petals)
Medicinal
No
Origin
Mexico
Climatic Condition
Temperate
Temperature (°)
18-24
Humidity (%)
50-70
Potting media
Peat+Compost
Fertilizers
Balanced NPK (10:10:10)
Watering
Regular watering
Plant Weight
~2-3 kg
Flowering Time
Mid-summer to fall
Soil Ph level
6.0-7.0
Water Ph level
6.5-7.5
Soil EC
0.5-1.0 mS/cm
Yield Per Plant
5-10 blooms
NPK ratio
10:20:20
life Span
1 season (tuberous)
Health Benefits
Ornamental, stress relief
Suggested Grow Media or Potting Mix ?
50% peat moss, 25% perlite, 25% compost
Suggested Fertigation/Fertilizers
Fertilize every 2 weeks with balanced fertilizer
Common Diseases and Remedies
Common Diseases
powdery mildew
Symptoms
Whitish powdery spots on leaves and stunted growth and pale colour
Organic Remedies
spray 5% of neem oil
spray sulphur and copper fungicides like Bavistin , or Carbendizum @ 2g/lit water