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Articles by Grubbycup

Keeping Cool: The Key to Live Concentrates

The term “live” in relation to concentrates implies that the cannabis used has not been dried, cured or exposed to high heat.

A Garden Doesn't Always Have to be Perfect!

In a world full of competition, even gardening can become a burden. It doesn’t have to be that way. Biggest and best isn’t necessary, as long there is enjoyment and satisfaction.

ABC's of NPK

A plant’s nutrition centers around its macronutrients: nitrogen (N), phosphorus (P), and potassium (K), which a plant uses in the largest quantities. Because they are so important to the plant, they should therefore be important to the gardener.

Aeroponic Cloning

Aeroponic methods are commonly used in vegetative propagation (a.k.a. cloning) by hobbyist and professional gardeners alike.

Anthocyanin and pH

Red Cabbage is high in a special type of flavonoid pigment known as anthocyanin. This gives red cabbage its characteristic purplish color, as well as being responsible for the blue in blueberries and the black in blackberries. It is also color reactive to pH and can be used to make a homemade pH col

Autoflowering Cannabis Breeding

When it comes to breeding cannabis, autoflowering is one of the most basic types of genetic traits of the plant, as it follows the laws of simple recessiveness and dominance. Specifically, it is a recessive trait. A brief review of high school biology reveals how it all works.

Auxins and Pruning

Gardeners can influence the flow of auxins from the growing tips to the rest of the plant through pruning or training to promote bushier growth and, in some cases, more uniform fruit size.

Basic Primer for Growing

All gardeners start out the same way—not knowing how to garden, and then learning. Here is the first in a series of articles written for those just starting out. Read on for an overview of what it takes to grow your own plants, from location to equipment to watering and feeding your plants.


For the last 10,000 years or so, people around the world have been collecting local plants and materials to weave baskets with.

Bell Siphons

Bell Siphons are one way to intermittently fill and drain a container such as for an ebb and flow hydroponic system.


Although biosolids are banned for agricultural use in many areas of the United States, the subject deserves a closer look.

Book Review: Ed Rosenthal's Marijuana Harvest

oday, more Americans than ever before have the ability to grow and cultivate marijuana for medical and personal use. Marijuana Harvest teaches cultivators how to avoid making costly mistakes, identify problems, and solve them quickly. Long-time grower Grubbycup reviews Rosenthal’s much anticipated n

Book Review: Marijuana 101: Professor Lee's Introduction to Growing Grade A Bud.

This is the book I wanted to have when I first started growing.

Calcium, Magnesium, and Coco

Calcium and magnesium are both important nutrients for plants, and they have a special relationship with coco coir that requires some special attention.

CBD Oil Transdermal Patches

Transdermal patches can be used to slowly deliver a substance such as CBD oil to a person over an extended period of time. Modern patches are odourless, discrete, long-acting and convenient, allowing in some cases for an alternative to inhalation, oral or suppository use.

Chemical Shortcuts

One hotly contested topic of cannabis gardeners is whether to use chemical based, or organic nutrients.

Cloches to Greenhouses

Cloches, hothouses, cold frames, greenhouses


While it may not be magic, it is possible to grow the same plant in more than one container at the same time. Using layering or by rooting cuttings, plants that share the same DNA can be produced, creating on-demand identical twins (almost).

CO2 for Your Indoor Garden

As an essential piece of the photosynthesis puzzle, carbon dioxide is an important component of indoor gardening that can be supplemented in a growroom in many forms.

Coconut Coir, Basics and benefits

Coconut Coir is a widely used organic and renewable growth medium for both hydroponic and container gardening.


It’s all going to turn into compost eventually—but Grubbycup can show you how to speed up the process and start making your own compost pile right in the backyard.


Cording is a specific way to twist fibers to form strands, ropes and perhaps least surprisingly, cords.

Curing Cannabis

How you handle your post-harvest cannabis is personal, though there are right ways and wrong ways to each method. Grubbycup provides some pointers on various methods and what they are best intended for.


When it comes to cannabis terminology, “bud,” “oil,” and “edibles” are self-evident. The term “dab,” however, is not. What is it? How do you use it? Grubbycup is here to explain.


Enzymes are organic substances produced by beneficial microbes that are becoming a common ingredient in plant supplements found at the grow shop.

From Diatoms to Diatomaceous

Diatoms are common single-celled algae found in the phytoplankton of both fresh and salt waters.

Fungus Among Us

What do molds, mildews, mushrooms, yeasts and mycorrhizae all have in common? Well, they are all forms of fungus, of course!

Gardening for Geeks: By the Numbers

Some gardeners are very artistic in their approach to gardening, in that they are content to estimate and remember which years had good harvests and what plants were the most productive. Others, however, like to use a more scientific method.

Geeky Ganja Gardening

Growing marijuana is part art, and part science.

Genetically Modified Organisms

The debate over whether genetically engineered crops should be allowed in the human food supply continues. Grubbycup shares some positives and negatives about genetically modified organisms.

Home Composting

Home composting relies upon one of the simplest axioms of nature: Things of the forest live by eating from the forest, and at their end, they are eaten by the forest.

Hot Tip for Gardening with Thermoplastics: Get a Soldering Iron

Starting seeds in disposable thermoplastic cups has advantages; as a way to get an additional use from something that otherwise would likely be thrown away, because they are cheap, and they are a reasonable size for seedlings.

Humidity Disks for Herb Jars

Simple homemade clay humidity disks (a.k.a. “Grubbycoins”) can be used to extend and improve the life of dried herbs and spices by helping regulate humidity.

Hydroponic Systems

Grubbycup describes common growing systems to help make that choice a little easier.

Indoor Garden Air Anything But Thin

When all of the beverage from a drinking cup has been imbibed, it is considered to be “empty”, and admittedly that definition tends to work as far as drinking needs go in gardening. It is sometimes helpful to remember that it is not empty at all, but rather full to the brim with air.


Kelp is a popular plant additive. Understanding what it is and how it benefits plants can help a gardener make the best use of it.

Light, Wavelengths, and Intensity

Light is one of the most important aspects to a successful garden, and serious growers should understand at least the basics.


The luffa is in the same family as gourds, cucumbers, melons, and squash.

Mud Pies and Hair Hygrometers

Sprouting seeds is a common part of gardening and, with a little ingenuity, can be an opportunity to explore a gardener's DIY side, both before and after harvest.

Nutrient Solution Management

There are certain nutrients that plants crave the most. Grubbycup explains how to mix them up to create nutrient solutions your plants will love.

Nutrient Solutions

Often, plants require nutrient elements in quantities so minute that we need to look at them in parts per hundred and parts per million. Here, Grubbycup explains how these measuring systems works.


7 Tips and Helpful Bits on Nutrient Solution Mixology

Oaksterdam University

Oaksterdam University¹ is a cannabis cultivation and industry educational institution located in the “Oaksterdam” section of Oakland, California.


Spanish for "pot," ollas have been used for thousands of years in many places around the world as a simple, yet incredibly effective irrigation method. I

Organic and Chemical Nutrients

A plant needs elemental nitrogen, phosphorus, and potassium for healthy growth, but where it gets these nutrients presents growers with a whole plateful of choices.

Organic vs Synthetic Side by Side

There are some differences of opinion that get argued over more that others, and a common topic for debate is the difference between organic and synthetic nutrients.


More than just an opportunity for a pHun headline, pH is an essential topic for indoor growers to get to know. Without a basic grasp of what pH is and how it affects your plants, your yields may suffer.


lants cannot grow without light, and the amount of light reaching your plants greatly affects how well they grow.


Plants that use the duration of their dark periods to signal flowering are said to be subject to photoperiodism.

Photosynthesis, Photoperiodism and Prolonging the Season

Manipulating the light that plants are exposed to can allow gardeners to grow plants out of sync with their normal growing seasons. Grubbycup has the details.

Plant Hormones: Auxins and Cytokinins

Auxins are plant hormones that help guide plant growth. They work in conjunction with but in opposition to, cytokinin hormones.

Plant Lighting


Plant Nutrition

Just like humans, plants need food to survive and thrive. Here’s a quick guide to get you started on designing your first nutrient regimen.

Potting Mixes

Starting with a good potting mix can make a big difference in how well a container garden performs. Grubbycup shares the basics on what to look for in a potting mix.

Potting Mixes

Starting with a good potting mix can make a big difference in how well a container garden performs. Grubbycup shares the basics on what to look for in a potting mix.

Pre-Veg Seedlings

When it comes to nurturing seedlings, gardeners need to be careful given how fragile plants are in the early development stage.

Reuse Your Media

During harvest time, there is first the joy of collecting the fruits of your labor, and then starts the somewhat less entertaining chore of cleaning up and getting ready for the next season.

Seed Types and Terminology

With so many seed types out there, it’s sometimes hard to distinguish which type of seed you’re actually buying. Our grow expert, Grubbycup, takes a closer look at seed types and how they differ.


Lots of gardeners take seeds for granted—but there’s a lot going on in these little packages of life.


Seeds are amazing storage containers that allow a plant to travel through space and time.

Seeds and Meristems

Inside each seed is a small plant, living and waiting for conditions to initiate sprouting.

Seeds and Needs

Imagine that you were going to pack up a Cannabis plant and transport it


Silica supplements are a popular addition to nutrient regimens, making plants stronger and less susceptible to environmental and pathogenic damage.

Simple 3 Part Potting Mix

Potting soils are generally made out of light materials known as “soilless mediums”.

Small Space Gardens

While it is nice to have a large open area that gives full sun to use as a garden, sometimes that isn’t available, but by using vertical gardens, a fence or wall may offer an alternative.

Solstices, Equinoxes, and Growing Cannabis

The solstices and equinoxes are significant for planting and growing cannabis and can be helpful in planning an outdoor season.

Spring Planting with Grubbycup

It may still be a bit chilly, but spring will soon be here.

Supplemental lighting and Partially Sunny Windows

Supplemental lighting can extend the area that the plants are grown in, and be used to control flowering in plants subject to photoperiodism.

Testing a New Nutrient Line

Nutrients are one of the most important variables in growing a successful crop. But with so many to choose from, how does a grower know which nutrient line is best for them? A simple controlled test, as explained here by Grubbycup, could hold the answer.

The Power of Hydrogen

The pH scale is used to describe how basic (alkaline) or acidic a solution is.

Troubleshooting Strategy

Lights, pumps, plants, and equipment all fail on occasion; being able to troubleshoot effectively can save time, energy and money.

Vascular System of Flowering Plants

Being acquainted with the basics of a flowering plant’s vascular system can help gardeners understand how a plant takes up nutrients and water, and uses sap to transport sugars and organic molecules.

Vertical Gardening

The stereotypical garden space is a horizontal, flat, well lit area, and while that configuration is useful in many circumstances, there are also more vertical alternatives to consider.

Visit: Dirt from Guitar and a Jar

I recently had the opportunity to spend some time with Dirt in his native habitat.


Water is a fundamental requirement for gardening that it is paradoxically often given little thought.

When to Say When

Trichomes are the hair-like structures found on plants. Stinging nettles have trichomes that inject an irritant when they are brushed, mint plants have trichomes containing the essential oils that give them their distinctive smell, and sundew plants have sticky trichomes that trap insects.

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