Cannabis Feeding Made Easy: A Weekly Guide

Growing cannabis at home? You've probably already discovered one universal truth: feeding your plants can feel confusing fast. Nitrogen here, potassium there, bloom boosters, Cal-Mag, monitoring pH levels.

But don't worry - we're about to make this super simple.

This weekly guide walks you through the feeding schedule from seedling to harvest, with product suggestions to keep your grow easy, smooth, and stress-free. Whether you're growing one plant in a tent or a whole backyard jungle, this guide has you covered.

🌱 Weeks 1-2: Seedling Stage

What's Happening:

Your seeds just popped, and they're working hard to develop roots. Right now, they're fragile and easily overwhelmed by heavy feeding.

Feeding Goals:

• No nutrients yet (or go very light)
• Focus on hydration and root development
• pH balanced water (6.0-6.5 for soil, 5.5-6.0 for hydro)

Do This:

• Use filtered or distilled water
• Water with a spray bottle or turkey baster
• Add a gentle root booster every few days

Try One of These:

• Mycorrhizal Root Stimulator - Kickstart early root growth with a powerful stimulant that encourages strong, healthy development from day one.
• Mycorrhizae 16 Species - Support long-term plant health with a rich blend of 16 beneficial fungi species that improve nutrient uptake and boost resilience.
• Root Riot Starter Cubes - Perfect for seeds and cuttings, these pre-moistened cubes create the ideal environment for rapid root development and easy transplanting.

🌿 Weeks 3-4: Early Veg Stage

What's Happening:

Leaves are forming fast and your plant is entering a serious growth spurt. It's time to introduce nutrients - but go slow!

Feeding Goals:

• Start veg nutrients at 25% strength
• Focus on nitrogen (for leafy growth)
• Introduce Cal-Mag to prevent early deficiencies

Do This:

• Feed every other watering (about every 3-4 days)
• Use a feed schedule chart from your nutrient brand
• Check your plant's response before increasing the dose

Try One of These:

• Fox Farm Grow Big - Packed with essential nutrients, this liquid formula promote vigorous vegetative growth and lush, green foliage.
• Cal-Mag Plus - A calcium and magnesium supplement that prevents common deficiencies and supports strong stems and healthy leaves.
• Foliage Pro 9-3-6 - This balanced one-part nutrient delivers everything your plant needs during vegetative stage in a simple, easy-to-use formula.

🌳Weeks 5-6: Late Veg Stage

What's Happening:

Your plant is now a small bush and prepping for flower mode. It's growing vertically and filling out.

Feeding Goals:

• Move to 100% nutrient strength
• Stick to veg nutrients but be ready to transition
• Maintain pH and monitor for tip burn

Do This:

• Feed every 2-3 days or when topsoil is dry
• Watch for signs of overfeeding (yellow tips)
• Adjust lights to keep plants compact and healthy

Try One of These:

• Grow Micro Bloom Combo Set - A customizable 3-part nutrient system that let's you fine-tune feeding throughout every stage of growth.
• Trio Liquid Nutrient - This liquid trio simplifies your feeding routine with targeted nutrients for veg, bloom, and everything in between.
• Earth Juice Grow - An organic option loved by soil growers, offering rich nitrogen content for vigorous early plant development.

🌸 Weeks 7-9: Early Flowering

What's Happening:

Your plant switches gears to reproduction mode. It needs phosphorus and potassium to support bud development.

Feeding Goals:

• Switch to bloom nutrients
• Cut back on nitrogen
• Add bloom boosters if desired

Do This:

• Start with 75% bloom strength, increase as needed
• Support branches - they're about to get heavy
• Keep checking pH regularly (flowers are picky)

Try One of These:

• Grow Micro Bloom Combo Set - This 3-part combo gives growers full control over nutrient ratios from seedling to harvest.
• Trio Liquid Nutrient - A convenient nutrient trio designed to work together seamlessly for consistent results.
• Roots Organics Buddha Bloom - An organic bloom formula that supports dense flowers and rich aroma during the flowering stage.

🌼 Weeks 10-12: Mid to Late Flower

What's Happening:

Buds are stacking, trichomes are forming, and smell is turning very real. This is an important stage.

Feeding Goals:

• Maximize bud size and resin production
• Increase potassium
• Optional: Use sugars and terpene enhancers

Do This:

• Feed with bloom nutrients and boosters every 2-3 days
• Reduce nitrogen to near zero
• Support limbs with netting or stakes

Try One of These:

• Advanced Nutrients Big Bud - Formulated to increase flower size and resin production, this additive is a favorite among high-yield growers.
• RAW All In One Bloom - A concentrated, water-soluble formula that delivers balanced bloom nutrients in one simple scoop.
• Hydroplex Bloom Enhancer - Packed with phosphorus, potassium, and amino acids, this enhancer supports explosive bud growth and improved quality.

💧 Weeks 13-14: Flush and Finish

What's Happening:

You're approaching harvest. Time to flush the soil and remove leftover nutrients to improve flavor, burn quality, and smoothness.

Feeding Goals:

• No nutrients - only pH-balanced water
• Optional: add flushing agents
• Start observing trichomes for harvest timing

Do This:

• Use RO water or filtered tap water
• Flush for 7-14 days, depending on your medium
• Watch for yellowing leaves (a good sign at this stage)

Try One of These:

• FloraKleen Clearing Solution - This clearing solution helps flush out excess salts and fertilizer buildup, improving the taste and burn of your final harvest.
• pH Up and Down Adjuster Kit - A simple kit that keeps your water's pH in the ideal range for nutrient absorption and overall plant health.
• Botanicare Clearex - Designed for use in soil and hydro systems, this flush formula gently removes residual nutrients without shocking your plants.

🛠️ Extra Tips to Make Feeding Even Easier

• Stick to One Brand (If You're New) - Brands like FoxFarm, Advanced Nutrients, or General Hydroponics have full systems that work together.
• Print a Schedule - Tape it to your grow tent or wall by your backdoor.
• Track Everything - Use a grow journal, app, or whiteboard.
• Use a Digital Scale - Especially for mixing dry nutrients or supplements.
• Don't Skip Cal-Mag - It's essential in most tap water regions and can prevent a lot of early stress.

Feeding your cannabis doesn't have to be a chemistry experiment. Follow a consistent weekly plan, listen to your plants, and keep things simple. As you get more comfortable, you'll start noticing the little signs they give when they're happy...or hungry.

With the right nutrients and a little patience, you'll be rewarded with sticky, stanky, top-shelf buds that you grew yourself. And that's a beautiful thing.

Got questions? Give HomeGrow Helpline a call or text at (937) 476-1669 - we're here to help you grow the best cannabis right at home.