Basil Treviso
2026 AAS Edible - Vegetable Winner
Basil Treviso

This award-winning basil is an outstanding choice for any kitchen garden, boasting a tight, compact, and highly branched habit perfect for larger containers. Not only does it offer delicious, slightly anise-flavored leaves, but it also stays tender longer—resisting bitterness after harvest and maintaining excellent leaf quality late into the season. The AAS Judges love its vigor, heat tolerance, and notably slow-to-flower nature. The bright foliage resists oxidation, making this cultivar an ideal, high-performing selection for superior, fresh-tasting pesto all summer long. Deliziosa!

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Plant Description
Genus:
 Ocimum
Species:
 basilicum
Common Name:
 Basil
Plant Habit:
Mounded
Plant Height:
15-18 inches
Plant Spread:
12-14 inches
Fruit Flavor Description:
Sweet basil
Foliage Color:
 Green
Disease Resistances or Tolerances:
Downy mildew, powdery mildew
Breeder:
GardenGenetics and Seeds by Design
Close Market Comparison:
Prospera Active Mia
Planting & Care
Garden Spacing:
12 inches
Days To Harvest (Sowing Seed):
90
Days To Harvest (Transplant):
60
Number of Fruits Per Plant:
100 plus leaves
Duration Type:
Annual
Light Needs:
Full sun
Water Needs:
Dry to Normal
Season Type:
Warm season
Staking Required:
No
Container:
Yes
Herb:
Yes
How to Grow:

Basil likes warm temperatures. Germination, whether in potting mix or garden soil, must occur between 65-70°F. Germination within 1 week is typical.

If growing to transplant in a potting mix, it will take 5-7 weeks to make a transplantable young plant. Growing should occur at 70-75°F and in medium to bright light.

If sowing directly into the garden, sow when the soil is warm, about the time you would typically transplant tomatoes or sow summer squash seed. Visible germination of the basil seed will take 10-14 days. Plants can begin to be harvested in another 4-5 weeks. Side shoots will appear from leaf nodes on any remaining plant stem, and the side shoots become harvestable within 4-5 weeks.

 

 

Judges Observations
  • “Good growth habit, long-standing and tolerant of heat.”
  • “This is a great container basil with upright, attractive branches. Brighter color and reduced oxidation makes it great for pesto.”
  • “Very little damage from Japanese Beetles on this entry, where other basils attracted the beetles.”
  • “Very tasty, short internodes, good fragrance, good performance.”
  • “Late to flower and excellent leaf quality late into the season, good flavor, slightly anise.”
  • “Leaves resist becoming bitter after harvest, which greatly increases the harvest window.”
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