“Determinate” varieties grow for a shorter
period of time, all the tomatoes will ripen at once, and then the plant stops producing.
These varieties can be easier to grow in a container as they require
minimal or no staking. “Indeterminate” varieties continue to grow and
produce indefinitely, and they usually require staking.
Plants that produce small, cherry-sized
tomatoes in abundance generally do better indoors than larger slicing varieties.
They're also handy for popping into your mouth or into salad in the dead of
winter. Tomato plants can grow upwards of 10 feet, so the variety you choose to
grow is important when growing them indoors. One type most appropriate for
indoor growing are so-called micro dwarf varieties, like Red Robin,
which will reach only about a foot tall. Mohamed, Yellow Canary, and Florida
Petite are also good plants for indoor growing.
In
my opinion, the best tomato varieties
to grow indoors and outdoors are heirlooms. Cloning your outdoor heirlooms is an
easy end-of-season hobby.
If you have
grown outdoor
heirloom cherry or patio tomatoes and would like to have one or more of them indoors until
planting outdoors in spring, or for fresh eating, you can begin to clone it a month or so before it would naturally die.
You can use this method to prepare transplants for spring, or grow the
heirloom plant for eating fresh tomatoes through winter. Choose
indeterminate varieties that grow and produce all the time for plants
that will go into the spring garden. Determinates will give you one
crop, all at the same time, in a set number of days, but that's ok, too.
If You're growing tomatoes indoors for eating throughout the winter and
for transplanting, you can clone and have both. But only the
indeterminates will produce again in the garden.
First things
first.... you can't just bring in a tomato plant after it's done doing it's
thing and get tomatoes.
You need to clone it by cuttings, plant new seedlings, and plant seed. Once it's
done, it's done. So leave those to Mother Nature and grow from new.
Begin the
cloning process outdoors. I stick quite a few healthy cuttings from my best
plants close together
into a large fabric grow bag with well-draining, quality potting soil. While
the plant you choose is still thriving outdoors, cut off a few young and healthy
tops from plants that
obviously won't have time to be productive anymore. I try to cut at least a 6-10
inch piece from each plant. You can plant them close because you're just rooting
cuttings which will be transplanted into pots when they're ready.
Cut a large enough stem with at least 2 or 3 large, healthy green leaves. Do not
bother using tops that show signs of disease or stress. Cut them big
enough so that you can bury the base of it a few inches deeper than you normally
would for a cutting - roots grow along tomato stems, so planting it deep gives
you a sturdier plant. Poke as many stems as you like into a pot - it's just
being used to root your plants. Mine looked so sad for the first couple of weeks
and i thought I failed, but then they began perking up and putting out new
growth. I leave them in the grow bag for a while, as long as it's warm enough at
night. Once it gets into the 50's, tomato plants will begin to die, so pot up
and bring the cuttings in anytime before that. If you have a grow light system,
they will grow indoors as well as they did outdoors.
Plant 1 plant in
each planter you choose, and make it big enough so that it can grow indoors and
not be transplanted again until spring. If your plant is determinate, you might
get a crop before spring, indoors. If the plant is dwarf or cherry
indeterminate, you might get a batch of tomatoes on a constant basis from these
little plants. They are heirloom clones, and will be exactly like its parents,
true to variety. I cut more stems than i need, and if i have too many, I will
gift them to friends to plant outdoors in spring. My plant varieties are hard
for me to find, so i take no chances.
You can
successfully repeat this process every year if the original plant doesn't begin
to die before you cut it. Be patient, it will take a few weeks for the cuttings
to be happy plants. Pinch your plants over the winter, and fertilize as you
would when growing in the ground. Most important is the 8+ hours of sun, natural
and/or grow lights, and plenty of water. Cloning your heirloom plants is a
great way to pass on some gardening history, and keep a favorite variety true to
the original. There are many heirlooms that disappeared, and here's your chance
to perpetuate a species and hand them down. Saving seeds is best, but my
varieties have very few tiny seeds and almost no pulp. I let my friends do that
if they wish, from the tomatoes i've given them.
The
following varieties are
heirlooms and hybrids you can try indoors.
Remember.....
Determinate varieties grow for a determined period of time, to a
determined size, all the tomatoes will ripen at once, and then the plant stops producing.
These varieties can be easier to grow in a container as they require
minimal or no staking. Indeterminate varieties continue to grow and produce
indefinitely, and they require more care. Not too much more, except for finding
space for them, and staking tall plants. Indeterminate varieties are best if
you're going to move the plants and plant them in-ground in spring. Determinate
is a good choice if you're just growing tomatoes indoors for your winter fix.
Ripening time is
from seed to harvest. Transplants will take less time to ripen.
Yellow
Pear
Indeterminate, 71 days, bright yellow, pear-shaped cherry (1 ½” round)
Baxter's Early Bush
Determinate, 70-72 days, cherry
red, (1 ½” round). Ripens early.
Pink Ping Pong
Indeterminate, 75 days, cherry-pink colored (1 ¼” round). Tomatoes are the
size of ping pong balls.
Siberia
Determinate, 50 days, bright red, small-fruited (up to 5 ounces). Excellent cool
weather variety that can set fruit at low temperatures, so go ahead and turn
down the thermostat if you like it cool.
Silvery Fir Tree
Heirloom, determinate, 55-60 days, orange/red, small-fruited (up to 3”
across). Fern-like foliage on this plant from Russia is so pretty, it can be
grown as an indoor ornamental.
Tommy Toe
Heirloom, indeterminate, 70 days, bright red, cherry tomato.
Tommy Toe carries a strong disease resistance.
Micro Tom
Hybrid, determinate, 85-88 days, red, super dwarf (tomatoes are about the size
of croutons). Each 6” Micro Tom produces a few dozen tomatoes.
Orange Pixie
Hybrid, determinate, 52 days, yellow-orange, large cherry (1 ¾” round)
Patio
Hybrid, determinate, 70 days, red, cherry (2” round) - some of my patio tomatoes
grow larger, and grow in large clusters on a small potted plant. Highly
recommended.
Red Robin
Hybrid, micro dwarf determinate, 55 days, red, cherry (about 1 ¼” round)
Small Fry
Hybrid, determinate, 65 days, red, cherry (1” round)
Tiny Tim
Hybrid, determinate, 60 days, bright red, cherry (½ - ¾” round)
Totem
Hybrid, determinate, 70 days, red, cherry (1” round)
Also consider these varieties.... Matt’s Wild Cherry, Toy Boy, Jelly Bean, and Tumbling
Tom (my fave cherry tomato to grow).
Tumbling Tom is a compact, bushy vine that hangs
down from baskets and grow well in raised beds. Beautiful when tumbling from the
the edges of a planter, it's a short, but extremely prolific tomato plant, with about 1"
tomatoes.
Tips
for growing tomatoes indoors
You should keep tomato plants between 60°-90°
F., but the optimal range is 72°-82° F.
I do not fool with seeds much, I'm impatient
and not very good at taking the time. I get my instant gratification by
purchasing seedlings from online nurseries. You can certainly grow from seed, if
you wish.
Tomato plants love sun. If sunlight is not
abundant (they need at least 8 hrs. of sunlight/day), use one of the dozens of
types of grow light setups that are available. I use them for an indoor garden,
and my plants do great all winter. There's one type that is on a telescoping
stand, and it has 3 or4 twisty arms - which is great for over tall and shorter
plants at the same time, there are clip-on types you can use on shelving units,
there are also hanging panels that you can hook from hooks in beams and such in
your basement or attic.
I particularly like using the light bulb
replacements in warm white. They look just like regular everyday lightbulbs and
shine in white, but they're grow bulbs. I use a few gooseneck lamps with
these bulbs and bend to my satisfaction. They take very little energy, last a
long time, and do a great job. I attached a timer - the kind you use when you go
away and your lights magically turn on when you want them to. Most of the stand
types come with a timer attached as an option. I have them set for 12-18
hr. sessions, they shut off automatically, then turn on automatically. Nothing
for me to remember for the basement plants. All are hooked up to 8 ft. long
6-outlet extension cords that are also connected to each other, so i get lots of
coverage. Cords are hidden behind or between the plants in a color that doesn't
stick out. The stand lights are easily dismantled and tucked away when you
expect company and need room, or at the end of the indoor growing season.
Tiny cherry tomatoes can be planted in hanging baskets and hung in front of
sunny windows. Clamp types are great for shelf-sitting plants. Use long surge
protecting extension cords. They can hold 6 plugs and cover an entire room's
lighting.
Plant as you would outdoors - Plant your
seedlings by burying the stems to about the middle of the plant. You will have
stronger plants, not skinny, spindly ones. Roots grow all along the stem, so
plant them as deep as you like, for a husky specimen. Put the seedlings in a
large pot with potting mix, and move the pots to the sunny place you picked out
earlier, and the tomato plants will grow to full size. Choose a large enough
pot, and you won't have to transplant them again.
I fertilize when I plant, then every two
weeks. I use diluted fish emulsion
fertilizer. I occasionally toss a little epsom
salt in the pot and water it in. You can use either of these as a
foliar spray - just mix some up in a plant mister and go to town every few
weeks. My plants respond very well to the fertilizers.
Stake, if and when necessary. Water
regularly and turn the plant now and then to get even sunlight on all parts.
Pollination - Tomatoes are self-fertile - each flower can pollinate itself.
That means that you need only one tomato plant for a crop. Great news for
the space-challenged gardener.
Pinch the daylights out of 'em - they like
it, and it helps keep them bushy. I pinch back the top a little when they reach
6 inches, then I pinch them back a few inches again when they are 12 Inches
tall. I like to do a last pinch when the plant reaches 18 inches - Never prune
micro dwarf varieties. Prune if you’re growing indeterminate tomatoes (vining
plants that grow all season long) or determinate tomatoes that do all their
growing in a short, fixed period. Prune the suckers. Pinch the suckers off with
your fingers or cut them with pruners, leaving a small piece of stem.
It usually takes indoor tomato plants around
60 to 80 days to produce fruit, just as they do outdoors. Pick tomatoes before they’re
red and ripe, allowing them to fully ripen afterward. This reduces cracking and
insect damage. If tomatoes are harvested at half ripe, or red justnear the
shoulder area, let them ripen on the kitchen counter, and they will be fully
ripe within a few days. The flavor will be the equal to vine-ripened. To pick a
tomato, grab it near the stem and twist to snap it off.
Grow some windowsill basil and parsley and a
few leafy mesclun or buttercrunch lettuces, and you'll have a fine indoor Italian tomato sauce, caprese
salad, and antipasto ingredient garden to pluck in winter.
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