Siam Queen Basil

Siam Queen Basil

Herb Basil Siam Queen

Organic annual.

All-American winner for 1997. Major improvement on the standard variety. A very regal looking plant! Has dense deep purple, inflorescence’s contrasting with the dark green leaves. Spicy anise-licorice aroma and flavor; excellent served fresh in such dishes as Thai green curries and Vietnamese noodle soups.



Growing Basil

Outdoors, containers (sow direct in final pots, or in plugs and later transplant to final pots), and hydroponics. Nighttime temperature must not go below 50° Fahrenheit.

Basil usually grows to a height of 12 to 18 inches and should be spaced between 9 and 12” apart.

Preferred pH Range

Basil will grow in a very wide pH range between 5.1 (strongly acidic) and 8.5 (alkaline) with a preferred range of 5.5 (strongly acidic) to 6.5 (mildly acidic).

Soil Requirements

Basil prefers soils that are well drained, and average to rich in composition.


Place 3-4 seeds in each pot, covering with app. ¼” sterile starting soil. Sow seed indoors about 3 weeks before last frost or direct sow outdoors after last frost and soil temp. is at least 50 deg.


5-10 days

Sun & Lighting Requirements

Basil grown outdoors prefers full sun.

Basil will grow indoors satisfactorily under standard fluorescent lamps, and exceptionally well under high output fluorescent grow lights, compact fluorescent, or high intensity discharge (metal halide or high pressure sodium) plant growing lights.

Keep standard fluorescent lamps between 2 and 4 inches from the tops of the plants, high output and compact fluorescents approximately one foot above the plants, and HID lights between 2 and 4 feet above the plants, depending on wattage.

Have an oscillating fan gently stir seedlings for at least 2 hours per day to stimulate a more compact and sturdier plant.

Water Requirements

Water regularly, being careful not to overwater. Allow soil to go completely dry between watering, then soak thoroughly.

Potential Plant Pests and Diseases

Basil can be susceptible to whitefly, thrips, aphids, and Fusarium wilt.

Companion Planting

Basil planted near tomatoes, peppers, oregano, asparagus, and petunias can help these plants repel or distract asparagus beetles, mosquitoes, thrips, and flies, and is said to make tomatoes taste better.

Planting chamomile or anise near basil is said to increase the essential oils of basil.

Special Notes

Basil is known to attract bees and butterflies and has very aromatic foliage.

Packet 50+ seeds


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