Lettuce – Lolla Rossa

lollaLolla Rossa is a frilly, loose-leaf green/red lettuce variety.

Jun 18 = Day 0.  Plants started from seed (Botanical Interests).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot. Moistened with Seedling Blend, a dilute blend of fertilizers.  N-P-K (in ppm): 22-29-16.

Jun 22 = Day 4.  The plant has germinated, and was placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

Jul 1 = Day 13.  Installed plant into 3.5-gallon buckets using the Masterblend-based Regular-Strength Blend.  N-P-K (in ppm): 103-95-202.  Plant moved to indoor grow room, receiving 9 hours LED grow light per day.

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Jul 1 = Day 13
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Jul 25 = Day 37
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Aug 11 = Day 54.  The front side of the plant (left) gets direct sunlight, and the leaves have turned reddish.  The back of the plant (right) gets light mostly from the LED grow bulb, and these leaves are more greenish.

Aug 12 = Day 55.  Began harvesting lower leaves for use in salads.  Plant is getting too tall and top-heavy, so it was tied to a pole to keep it upright.  Also, grow room is very hot (above 80 °F during the day), so the use of the LED grow light was discontinued.  Plant is now receiving 3-4 hours of direct sunlight per day.

Sep 2 = Day 76.  All lower leaves have been harvested, and the plant has bolted, so the remaining upper leaves taste bitter.  This plant has grown to be almost 4 feet tall!  Plant was discarded at this time.  Total fluid used = 2.8 gallons.  Final pH = 5.0.

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Sep 2 = Day 76

Lettuce – Salad Bowl

salad-bowl-lettuceMay 18, 2016 = Day 0.  Plants started from seed (Bountiful Gardens).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot.  Moistened with dilute fertilizer solution: 1.2 mL Dyna-Gro Liquid Grow, 0.8 mL pH Down per gallon of tap water.  Nutrient concentrations (in ppm):  N 22, P 29, K 16, Ca 6, Mg 1.6, S 0.2, Fe 0.3, Mn 0.2, B 0.1, Zn 0.2, Cu 0.2, Mo 0.003, Ni 0.0003, Co 0.005.  pH = 6.0.

May 21 = Day 3.  Plant germinated, placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

May 28 = Day 10.  Installed plant into 3.5-gallon bucket.  Hydroponic solution composed of 3.5 gal (13.2 L) tap water, 53 mL 250x Masterblend 4-18-38, 53 mL 250x calcium nitrate, 53 mL 250x magnesium sulfate, 0.7 mL Dyna-Gro Pro-TeKt, 3.5 mL pH Down.  (This solution is equivalent to 3.5 gal water, 7 g Masterblend, 7 g calcium nitrate, 3.5 g magnesium sulfate).  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 = 6.0.  Plants moved to indoor grow room, receiving 8 hours LED grow light per day, plus 3 hours sunlight per day.

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May 28 = Day 10
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Jun 16 = Day 29.  3 plants are growing in the same net-pot.

Jun 28 = Day 41.  Began harvesting lower leaves.

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Jul 6 = Day 49

Jul 16 = Day 59.  Harvested all remaining leaves.  Total fluid volume used = 2.1 gallons (0.7 gallons per plant).  Final pH = 7.0.

Lettuce – Red Sails

431gApr 22, 2016 = Day 0.  Plants started from seed (Botanical Interests).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot.  Moistened with dilute fertilizer solution (1.2 mL Dyna-Gro Liquid Grow, 0.8 mL pH Down per gallon of tap water).  Nutrient concentrations (in ppm):  N 22, P 29, K 16, Ca 6, Mg 1.6, S 0.2, Fe 0.3, Mn 0.2, B 0.1, Zn 0.2, Cu 0.2, Mo 0.003, Ni 0.0003, Co 0.005.  pH = 6.0.

Apr 24 = Day 2.  Plant germinated, placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

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May 2 = Day 10

May 5 = Day 13.  Installed plant into 1-gallon bucket (Orgain).  Hydroponic solution composed of 1 gal (3.8 L) tap water, 15 mL 250x Masterblend 4-18-38, 15 mL 250x calcium nitrate, 15 mL 250x magnesium sulfate, 0.2 mL Dyna-Gro Pro-TeKt, 1 mL pH Down.  (This solution is equivalent to 1 gal water, 2 g Masterblend, 2 g calcium nitrate, 1 g magnesium sulfate).  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 = 6.0.  Thinned to 1 plant per net-pot.

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May 13 = Day 21

May 14 = Day 22.  Moved plant to indoor grow room, receiving 8 hours LED light per day.

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May 26 = Day 34

Jun 12 = Day 51.  Plant is getting tall, falling over.  Harvested all leaves.  Final statistics: Total fluid used = 7 cups (0.44 gallons).  Final pH of fluid = 6.5.

Lettuce – Salad Bowl

salad-bowl-lettuceSalad Bowl is a type of green loose-leaf lettuce having deeply lobed leaves.  The last time I grew this variety, it was years ago when I had a raised-bed garden.  Let’s see how it does in the Bucket Hydroponics system.

I will also be comparing 2 different types of fertilizer blends:
1)  Masterblend 4-18-38 + calcium nitrate + magnesium sulfate
2)  Jungle Juice 3-part liquid fertilizer (Grow 2-1-6, Bloom 0-5-4, Micro 5-0-1) + calcium nitrate

mb-vs-jj

Mar 29, 2016 = Day 0.  Plants started from seed (Bountiful Gardens).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot.  Moistened with Seedling Blend, a dilute blend of fertilizers.  N-P-K (in ppm): 22-29-16.

Mar 31 = Day 2.  Plants germinated, placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

Apr 7 = Day 9.  Thinned to 2 seedlings per net-pot.  Installed plants into 11 cup plastic containers with the 2 different types of hydroponic solution:
1)  Masterblend-based Regular-Strength Blend.  N-P-K (in ppm): 103-95-202.
2)  Jungle Juice Blend.  N-P-K (in ppm): 113-79-147.

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Apr 7 = Day 9.  Masterblend (left), Jungle Juice (right)
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Apr 19 = Day 21.  Masterblend (left), Jungle Juice (right).  Thinned to 1 plant per net-pot.
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May 2 = Day 34.  Masterblend (left), Jungle Juice (right).

May 9 = Day 41.  Containers are almost empty, and lower leaves are starting to turn yellow, so all the leaves were harvested.  Comparing the 2 types of fertilizers, there was no clear winner here; the plant leaves and root systems both looked great.  Interestingly, the final pH levels of the solutions were quite different, but the plants did well in both cases, indicating that these Salad Bowl lettuce plants are resilient.

Final Stats:
Masterblend:  Fluid used = 9.75 cups (0.61 gal).  Final pH of fluid = 8.0.
Jungle Juice: Fluid used = 9.25 cups (0.58 gal).  Final pH of fluid = 5.0.

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May 9 = Day 41.  Masterblend (left), Jungle Juice (right)
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May 9 = Day 41.  Masterblend (left), Jungle Juice (right).

Lettuce – Red Sails, Rouge Grenobloise

greens-lettuce-rouge-grenobloise-img_0312-002Rouge Grenobloise is a Batavian (crisphead) type of lettuce from France.  I will be comparing this lettuce to Red Sails, one of my favorites.

Mar 10, 2016 = Day 0.  Plants started from seed (Botanical Interests, Bountiful Gardens).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot.  Moistened with dilute fertilizer solution: 1.2 mL Dyna-Gro Liquid Grow, 0.8 mL pH Down per gallon of tap water.  Nutrient concentrations (in ppm):  N 22, P 29, K 16, Ca 6, Mg 1.6, S 0.2, Fe 0.3, Mn 0.2, B 0.1, Zn 0.2, Cu 0.2, Mo 0.003, Ni 0.0003, Co 0.005.  pH = 6.0.

Mar 12 = Day 2.  Plant germinated, placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

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Mar 19 = Day 9.  Red Sails (left), Rouge Grenobloise (right)

Mar 22 = Day 12.  Installed plants into 3.5-gallon bucket.  Hydroponic solution composed of 3.5 gal (13.2 L) tap water, 53 mL 250x Masterblend 4-18-38, 53 mL 250x calcium nitrate, 53 mL 250x magnesium sulfate, 0.7 mL Dyna-Gro Pro-TeKt, 3.5 mL pH Down.  (This solution is equivalent to 3.5 gallons water, 7 g Masterblend, 7 g calcium nitrate, 3.5 g magnesium sulfate).  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 = 6.0.  Plants moved to indoor grow room, receiving 9 hours LED grow light per day, plus 3 hours sunlight per day.

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Mar 29 = Day 19.  Red Sails (left), Rouge Grenobloise (right).  Thinned to 1 plant per net-pot.
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Apr 7 = Day 28.  Red Sails (left), Rouge Grenobloise (right)
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Apr 19 = Day 40.  Red Sails (left), Rouge Grenobloise (right)

Apr 26 = Day 47.  Started harvesting lower leaves.  Plants appear identical.

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May 2 = Day 53

May 19 = Day 70.  Both plants were quite large and were falling over.  Harvested all leaves.

At the end of this comparison between Rouge Grenobloise and Red Sails, it is clear that there is no noticeable difference in yield, color, quality, or taste.

Lettuce – Buttercrunch

seattle20seed20lettuce20-20buttercrunch20ogFeb 26, 2016 = Day 0.  Plants started from seed (Botanical Interests).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot.  Moistened with dilute fertilizer solution: 1.2 mL Dyna-Gro Liquid Grow, 0.8 mL pH Down per gallon of tap water.  Nutrient concentrations (in ppm):  N 22, P 29, K 16, Ca 6, Mg 1.6, S 0.2, Fe 0.3, Mn 0.2, B 0.1, Zn 0.2, Cu 0.2, Mo 0.003, Ni 0.0003, Co 0.005.  pH = 6.0.

Feb 29 = Day 3.  Plant germinated, placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

Mar 8 = Day 11.  Installed plant into 0.5-gallon glass jar.  Hydroponic fluid was formulated using 250x stock solutions, as described on the Fertilizers page.  Hydroponic solution composed of 0.5 gal (1.9 L) tap water, 7.6 mL 250x Masterblend, 7.6 mL 250x calcium nitrate, 7.6 mL 250x magnesium sulfate, 0.1 mL Dyna-Gro Pro-TeKt, 0.5 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 = 6.0.  Moved plant to indoor grow room, where plant receives 9 hours LED grow light plus 3 hours sunlight per day.

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Mar 9 = Day 12
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Mar 29 = Day 32.  Thinned to 1 plant.

Apr 7 = Day 41.  Began harvesting lower leaves.

Apr 13 = Day 47.  Harvested all leaves.  Plant had grown very tall, and was having difficulty standing upright. Final statistics: 7 cups (0.44 gal) of fluid used, pH of fluid = 7.0.

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Apr 13 = Day 47

Lettuce – Red Sails

431gFeb 10, 2016 = Day 0.  Plants started from seed (Botanical Interests).  Seeds sowed in 1.5-inch rockwool cube in 2-inch net-pot.  Moistened with dilute fertilizer solution: 1.2 mL Dyna-Gro Liquid Grow, 0.8 mL pH Down per gallon of tap water.  Nutrient concentrations (in ppm):  N 22, P 29, K 16, Ca 6, Mg 1.6, S 0.2, Fe 0.3, Mn 0.2, B 0.1, Zn 0.2, Cu 0.2, Mo 0.003, Ni 0.0003, Co 0.005.  pH = 6.0.

Feb 13 = Day 3.  Plants germinated, placed directly under a fluorescent light (2 ft. T8 bulb, 17W, 6500k) for 16 hours per day.

 

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Feb 17 = Day 7

Feb 20 = Day 10.  Installed plant into 11 cup (0.69 gallon) plastic container (Vega).  Hydroponic solution composed of 0.69 gal tap water, 4.125 mL Dyna-Gro Liquid Grow.  Nutrient concentrations (in ppm): N 111, P 143, K 79, Ca 32, Mg 8, S 0.8, Fe 1.6, Mn 0.8, B 0.3, Zn 0.8, Cu 0.8, Mo 0.01, Ni 0.002, Co 0.024.  pH = 6.0.  No pH adjustment required.

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Feb 28 = Day 18

Mar 1 = Day 20.  Based on information obtained in this post and this post, it seems that the pH of the Liquid Grow-based hydroponic solution tends to drop below 4.0 by the end of the growing period, which is not ideal for nutrient uptake.  Therefore, I have switched to a Masterblend-based solution.  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 = 6.0.

Mar 8 = Day 27.  Moved plant to indoor grow room.  Plant receives 9 hours LED grow light plus 3 hours sunlight per day.

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Mar 19 = Day 38.  Leaves are ready for harvesting.
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Mar 29 = Day 48

Mar 31 = Day 51.  Harvested all remaining leaves.  Final statistics: 9 cups (0.56 gal) of fluid used.  Final pH of fluid = 7.0.