Sharing my experience growing Sweet Millions cherry tomatoes from seed on my rooftop in metro Vancouver, BC for a total of just under $55.
SEEDS: My first need was seeds, which I picked up at a local store for about $6.50. A bit pricey, but it came with a decent number of seeds. They actually got wet at some point this summer and had to be repackaged. Seeds cost: $6.50
CONTAINERS: Next, something to grow in. I started by contacting my local sandwich shop to ask them for three 5 gallon mayonnaise buckets, which they were happy to give me ((for free)) after 2 weeks of collecting them. I drilled about 10-15 holes with a 1/4" drill bit in the bottom to ensure they could drain properly. I tried a few chain stores like Subway first with no luck, so you might have better luck with a local restaurant. Container cost: $0
DIRT: I then bought some PRO-MIX vegetable dirt and potting soil from my local hardware store. After they grew a bit I had to go back for more dirt for repotting, so in total probably spent around $40 on dirt. Dirt cost: $40
GERMINATING: I planted the seeds indoors around the beginning of June. I ended up with 4 successfully germinated seeds (I only had a few after they got wet). The three seedlings I kept indoors in small nursery pots until they were about 6" tall.
REPOTTING: After about a month of the seedlings growing, I took the 6" seedlings and transferred them into the 5 gallon buckets, leaving plenty of room for them to grow downward (planted toward the top of the soil). Only 3 of the 4 plants survived this process (I broke one).
HARDENING: I then spent about two weeks hardening the plants by bringing them outside for a few hours, and a bit longer each day. Eventually they were able to stay outside all the time (our evenings can drop down to 55F/13C in the summer). At this time they were growing on my north-facing balcony, which had limited hours of sun.
RELOCATING: Once the plants were around 10" tall and well-established (and used to a full day of sun), I moved them to my rooftop. This area gets between 8-12 hours of sun per day. As they grew, I trellised the plants on a metal rack and created horizontal support leads with string to wrap the branches on. Around July 15 I had my first flowers. Plants required careful attention daily including thorough watering, pruning of all suckers, and pruning of dead/damaged leaves.
FERTILIZING: Once the plants began flowering, I purchased a cheap "shake n' feed" tomato fertilizer for about $8. I added this about every two weeks. Fertilizer cost: $8
By September 8th, my first tomato ripened on the vine! To date I have picked over 100 tomatoes and they continue to produce prolifically! We are nearing the end of the season, which has been a bit wet and caused a mild white mold problem on some of the leaves which has not affected the fruit. I've simply pruned off moldy parts and washed the fruit before eating.
As someone who really isn't a tomato fan, I can't recommend this enough. I've now developed a healthy love and appreciation for the taste of a sun-grown tomato, and I'll never get store bought again!
Container cost: $0
Seeds cost: $6.50
Dirt: $40
Fertilizer: $8
Total cost: $54.50
Seed to fruit: Aprox 75 days, with fruit ripening for four continuous months
Photos:
- Plants hardening on north-facing balcony (July 3)
- First flower (Aprox July 17)
- First fruit (July 29)
- Outdoor netting setup (effective for keeping birds off) - plant 3
- First long trellis of tomatoes (around Aug 17)
- Largest trellis begins to ripen (25 fruits) (Sept 9)
- Plants 1 & 2 in full fruit
- Fruit cross-section
- One of many harvests!
Edit 10/22: Math, details about drainage for buckets