Lettuce – Adriana, Red Sails

Red Sails, a reddish loose-leaf variety, has been a dependable lettuce for me in the past.  I will be comparing it to a new lettuce, Adriana, a green butterhead variety.  Since my 3.5-gallon bucket will hold 3 plants, I will grow 1 Adriana plant and 2 Red Sails.

Dec 2, 2015 = Day 0.  Plants started from seed: Adriana (Johnny’s Seeds), Red Sails (Botanical Interests).  Moistened with dilute fertilizer: Dyna-Gro Liquid Grow, diluted 1 mL (1/5 tsp) per gallon of tap water.  Nutrient concentrations (in ppm):  N 18, P 24, K 13, Ca 5, Mg 1, S 0.13, Fe 0.26, Mn 0.13, B 0.05, Zn 0.13, Cu 0.13, Mo 0.002, Ni 0.0003, Co 0.004.  pH = 7.0.

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Dec 10, 2015 = Day 8.  Adriana is at lower right.
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Dec 18, 2015 = Day 16.  Adriana is at top.

Roots are now visible growing out of the bottom of the rockwool cubes, so it is time to install these plants into a larger 3.5-gallon bucket.

Dec 19, 2015 = Day 17.  Plants installed in 3.5-gallon bucket.  Hydroponic solution composed of 3.5 gal (13.25 L) tap water, 7 g MasterBlend 4-18-38, 7 g calcium nitrate, 3.5 g magnesium sulfate, 0.7 mL Dyna-Gro Pro-TeKt, 2.8 mL pH Down.  Nutrient concentrations (in ppm):  N 103, P 95, K 202, Ca 100, Mg 29, S 34, Fe 2.1, Mn 1.1, B 1.1, Zn 0.3, Cu 0.3, Mo 0.05, Si 4.  pH = 6.5.

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Dec 19, 2015 = Day 17.  Adriana is at top.
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Dec 28, 2015 = Day 26.  Adriana at top.  Red Sails at bottom.

I thinned out the plants so that there are now only 2 plants growing out of each net-pot.

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Jan 8, 2016 = Day 37.  Adriana (front), Red Sails (back)
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Jan 20, 2016 = Day 49.  Adriana (front), Red Sails (back)
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Feb 2, 2016 = Day 62.  Plants are ready for harvest.

Feb 28 = Day 88.  The entire Adriana plant has been harvested, only the 2 Red Sails plants remain.  The plant stems are getting quite long, but the leaves still taste fine.

IMG_20160228_144321431 (1)
Feb 28 = Day 88

Mar 10 = Day 99.  Harvested all leaves.  Final statistics:  3.2 gallons (12.1 L) of fluid used.  Final pH of fluid = 8.0.

IMG_20160310_132621615 (1)
Mar 10 = Day 99

Based on my experience, I conclude that Red Sails gives a better yield than the Adriana variety.  Both types of lettuce did well, but the Red Sails leaves were bigger and more plentiful than the Adriana.

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