LED Lamps – Part 2

by Jorge Cervantes This is the Part 2 of a two part article about LED lamps.   Phosphor-coated LEDs produce more of a blue spectrum and peak at about 465 nm. There is a vast array of LED retrofit bulbs packed into a larger bulb that fits in household incandescent screw fittings. These bulbs cost…

LED Lamps – Part 1

by Jorge Cervantes This is Part 1 of a two part article about LED lamps. LED lamps are everywhere. You see them in stop lights, flashlights and household lighting, Christmas tree lighting, etc. The technology has come a long way since it was developed in the early 1960s, when LEDs were found in appliances and…

Q&A with Jorge: Clones of Clones

Q&A with Jorge Clones of Clones Dear Jorge, I have always made mother plants from seed only. All my friends tell me it’s OK to make a mother from a clone. I can’t see how that could be OK. It would be like cloning off a clone, and cloning off that clone, etc. This can’t…

What to do Before Harvest

by Jorge Cervantes Before Harvest Watering is important when plants are flowering. Continue regular irrigation as needed. Make sure to check the soil moisture daily to avoid overwatering. Always irrigate in the morning so that the majority of water is used during the day. Soggy roots at night will slow growth substantially. Do not water…

How to Use Nutrient Solution

by Jorge Cervantes The concentration of the nutrient solution has an enormous effect on plant development and growth. Measuring the overall concentration or strength of a ‘balanced’ solution is essential. Focus on nutrient balance and concentration in the solution to head off deficiencies before they cause big problems. Fertilizers (dissolved ionic salts) conduct electrical current…

2012 Backyard Garden

by Jorge Cervantes 2012 Backyard Garden This year I started with good strong clones – 2 Queen Mother x Elvira, 2 Apollo 13 and 2 Lamb’s Bread x Mother Teresa –from an expert indoor medical gardener. They were in 12 cm pots and 30-45 cm tall, overgrown. The roots were in fair condition, even though…

The Cannabis Encyclopedia, Chapter 4: Where and When to Plant

Excerpt from Jorge’s Upcoming Book: The Cannabis Encyclopedia: Indoor, Outdoor and Greenhouse Cultivation, Concentrates and Cooking Medical Marijuana Chapter 4: Cannabis Life Cycle Where and When to Plant? Three Gardens This section outlines three different gardens in three different locations: indoor, greenhouse, and outdoor. The examples show different planting and harvest scenarios that use the…

The Cannabis Encyclopedia, Chapter 5: Seeds and Seedlings

Excerpt from Jorge’s Upcoming Book: The Cannabis Encyclopedia: Indoor, Outdoor and Greenhouse Cultivation, Concentrates and Cooking Medical Marijuana Chapter 5: Seeds and Seedlings Introduction Seed varieties developed in California are often crossed by European breeders and sold to cannabis gardeners around the world. Exponential growth of seed selection and legal seed sales in the Netherlands,…

The Cannabis Encyclopedia, Chapter 6: Vegetative Growth

Excerpt from Jorge’s Upcoming Book: The Cannabis Encyclopedia: Indoor, Outdoor and Greenhouse Cultivation, Concentrates and Cooking Medical Marijuana   Chapter 6: Vegetative Growth   Introduction Strong vegetative growth is essential to a healthy harvest. The cannabis seedling growth stage lasts for about two to three weeks, from seed germination to (strong) root set. Once a…