Growing Broccoli in grow bags.
Why should you use a grow bag to grow your broccoli. You can grow a delicious broccoli harvest in a grow bag even if you have very little room to grow (patio, balcony, deck or small yard). You can also grow for a longer period using grow bags because you have more control over the environment you grow your broccoli. You should use a grow bag that is at least 3 gallons because it is a larger and heavier feeding vegetable.
How do you grow your broccoli in grow bags:
You will need a 3 gallon or bigger grow bag. Broccoli is a heavy feeder so you will need a potting soil that is high in nutrition.
Broccoli also need the soil to be light, well aerated and good drainage.
If you start with a good potting soil, you should only need to fertilize once or twice.
Choose a fast maturing broccoli like our Waltham 29 and you will be able to harvest your broccoli in 50-65 days.
Put 2 seeds in your grow bag to insure one will grow. If they both germinate then thin out the smaller of the two.
Plant your seeds outdoor in your grow bag 2-3 weeks before the average last frost.
Keep the soil moist but not drenched and in a warm area.
The seeds should germinate in 5-10 days.
Keep the soil moist and provide lots of light for the next 3-4 weeks and watch it grow.
Harvesting your Broccoli:
Your broccoli plants should be ready to harvest in 50-70 days. You should be able to harvest your plant multiple times before the summer heat causes it to flower.
Your main head will be the first harvest. Grow bag grown broccoli will be anywhere from 3-6 inches when harvested. The best tasting will be a dark green and have no flowers. To harvest, use a sharp knife and cut through the stem 5-6 inches below of the head.
Your second harvest will be the plants side shoots. These are smaller heads of broccoli. You should be able to harvest these side heads a few weeks after your main harvest.
Once you harvest the last of your spring heads of broccoli, you can now use your grow bag to plant a vegetable that is more suited to the heat of summer.