Modified Grapes feminized cannabis plant in flower

Feminized seeds

GMOxPurple Punch

THC: 24-29%
Bloom: 8-9 wks
Yield/sq ft: 1.5-1.8 oz
Level: Moderate

Modified Grapes Feminized Seeds

From $65.00

Grape candy meets garlic funk. A compact GMO x Purple Punch cross that colors up deep purple and finishes in 8-9 weeks.

THC24-29%
Bloom8-9 weeks
Height3-4 ft indoors
LevelModerate

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SKU: BMS-MG-FEM Categories: Feminized Seeds, High THC Seeds, High Yield Seeds, Hybrid Seeds, Indica Seeds, Indoor Seeds, Outdoor Seeds

Quick answerModified Grapes is an indica-dominant hybrid bred from GMO x Purple Punch. It pairs sweet grape candy with a savory garlic funk, shows reported THC of 24-29%, stays compact at 3-4 ft indoors and finishes in 8-9 weeks, often with deep purple buds.

Modified Grapes at a glance

THC24-29%Supplier reported. Strong enough to respect, smooth enough to enjoy.

Flowering8-9 wksA week or more faster than GMO

Indoor yield1.5-1.8 ozPer sq ft with an even canopy

Height3-4 ftIndoors. 5-6 ft outdoors

Outdoor harvestEarly OctMost US latitudes

Bag appealDense purple buds under heavy frostCool nights in the last two weeks bring out the deepest color

What is the Modified Grapes strain?

Modified Grapes brings together two very different personalities. On one side sits GMO, the savory Chemdawg x Girl Scout Cookies cross known for its garlic and fuel. On the other is Purple Punch, a sweet, grape-candy indica that has become a favorite parent in dessert breeding. The name is a simple pun: “Modified” points to GMO, and “Grapes” is the flavor Purple Punch hands down.

In the garden, the Purple Punch side tends to take charge. Instead of the tall, stretchy frame of GMO, Modified Grapes grows short, sturdy and bushy, with round, tightly packed buds that blush dark purple as they ripen. It also finishes faster than its savory parent, usually in 8 to 9 weeks.

Phenotypes differ mostly in how much garlic comes through the grape. Some lean candy-sweet with a light savory edge, others push the funk forward, but every plant tends to carry the color and the thick resin. These feminized seeds are bred to grow female plants, so each seed is aimed at harvestable flower.

GMOPurple Punch

GMO x Purple PunchFeminized line

Modified Grapes

How it feels

Commonly described as a short, warm lift that melts into thorough body relaxation, with appetite showing up mid-session and sleep close behind. Best saved for a free evening.

First 10 minutesWarm, easy lift
A brief, pleasant mood boost that softens the edges of the day.
30 to 60 minutesCouch settle
Loose, heavy relaxation through the body, often with the munchies.
2 to 3 hoursReady for bed
Many people report a drowsy finish that leads straight to sleep.

Commonly reportedRelaxedSleepyEuphoricHungry

With reported THC up to 29%, start low and go slow. Commonly reported downsides include dry mouth and dry eyes, and some people report anxiety or dizziness at high doses. General reports, not medical guidance.

Aroma, flavor and terpenes

Sweet grape and berry jam on the first sniff, then a savory garlic funk underneath. The smoke tastes like grape candy with a pungent, earthy exhale.

Flavor notesGrapeGarlicSweetFunk

MyrceneRipe fruit, earth

Carries the jammy grape base and the heavy feel.

CaryophyllenePepper, spice

The savory, peppery note inherited from GMO.

LinaloolLavender, floral

Adds a soft floral sweetness to the grape.

Let a few degrees of night-time drop (around 10°F cooler than day) do the work in the final two weeks. It deepens the purple without slowing ripening.

How to grow Modified Grapes

Rated moderate. It is compact and sturdy, so space is easy; the focus is keeping its dense purple buds dry and well ventilated.

Indoors

Veg climate: 75-80°F, 55-65% RH
Flower climate: 68-79°F, 40-45% RH
Color: Night temps about 10°F lower in the last 2 weeks
Light: 700-900 PPFD in flower (LED)
Training: Top once, LST the side branches
Feeding: Moderate; avoid heavy nitrogen in bloom

Outdoors

Plant out: When nights stay above 50°F
Size: 5-6 ft with full sun
Harvest: Early October
Best fit: Sunny summers, dry early fall (USDA 6-10)
Watch for: Mold in tight buds after rain
Protect: Prune the lower third for airflow

Read the full indoor grow guide

Modified Grapes takes after Purple Punch in structure: a short, sturdy plant that usually stays around 3 to 4 feet indoors, with strong branches and very dense, round buds. That makes it easy to fit in a 2×4, 3×3 or 4×4 ft tent, and it rarely needs aggressive height control.

Environment

Vegetative: 75-80°F with 55-65% relative humidity.
Flower: keep it stable at 68-79°F and bring humidity down to about 40-45%.
Airflow: point a gentle fan through the canopy, not just over it. Tight purple buds hide moisture well, which is how bud rot starts.

Training

Top once at the fifth node, then use low-stress training to pull the side branches out into a flat canopy. Clear the small, shaded growth from the bottom of each branch with lollipopping before the flip so the plant puts its energy into the tops.

Feeding and color

Feed at a moderate strength and back off nitrogen once flowers set, since dark, clawing leaves are a sign of overfeeding in this kind of indica. For the best color, let nights run roughly 10°F cooler than days in the final two weeks. Do not chill the room too hard; mild cold stress is enough.

Harvest timing

Most plants are ready 8 to 9 weeks after the flip. Use a loupe on the trichomes: cloudy heads with a touch of amber give the heavy, sleepy finish this strain is known for.

Seed to jar in about 21 weeks

A typical indoor run. Veg time is flexible; the bloom is set by the genetics.

Germinate1 wkSeedling2 wkVegetate4 wkFlower9 wkDry and cure5 wk

Week 1Week 21

Germinate weeks 1-1
Moist paper towel, 75-80°F
Seedling weeks 2-3
Soft light, 65-70% RH
Vegetate weeks 4-7
Top, LST and lollipop
Flower weeks 8-16
8-9 weeks, cooler nights at the end
Dry and cure weeks 17-21
About 60°F and 60% RH, then jars

Growing Modified Grapes outdoors in the US

Outdoors, Modified Grapes stays manageable at around 5 to 6 feet and can yield roughly 19 to 23 ounces per plant in full sun. It finishes in early October at most US latitudes, which gives it a comfortable margin in many places that cannot ripen later strains.

Its natural ally is the cool autumn night. In mountain valleys and northern states, the drop in temperature at the end of September can turn the buds a striking purple. The danger is moisture: dense flowers hold onto rain and dew, so prune the lower branches, space plants for airflow and keep an eye on the forecast in the last two weeks. The outdoor planting guide covers timing for each USDA zone.

Check your state’s rules on home cultivation before planting. Some states allow adults to grow a set number of plants at home, while others do not allow it at all; see our guide to marijuana laws by state.

Will it finish where you live?

ExcellentInland California and the Southwest

Steady sun and a dry early October make for full, resinous buds.

ExcellentColorado Front Range and Utah valleys

Dry air and cool fall nights bring out the purple before frost.

GoodMidwest

An early October finish usually beats the coldest, wettest weeks.

FairNortheast

It ripens in time, but humid late summers raise the mold risk.

FairSoutheast and Gulf Coast

Heat is no problem, yet muggy air is hard on its dense buds.

Check your state's home-grow rules before you plant. Laws by state

Who Modified Grapes is for

Bag-appeal growersAnyone who wants frosty, deep purple flower that stands out in the jar.
Small-tent growersA 3-4 ft frame that fits comfortably in 2×4, 3×3 and 4×4 ft tents.
Sweet-and-savory fansConsumers who like grape candy with a garlic twist rather than pure dessert.
Northern outdoor growersAn early October finish suits many shorter US seasons with a dry fall.

Keep exploring

Indica seedsCompact, relaxing evening strains Outdoor seedsGenetics that finish well under the sun Autoflower vs feminized seedsPick the right seed type for your space Strain finderMatch strains to your goals and climate What is lollipopping?The pruning trick for denser tops

Modified Grapes strain data sheet

Genetics

Seed type: Feminized
Genetics: Indica-dominant hybrid
Lineage: GMO x Purple Punch

Potency & profile

THC: 24-29% (supplier reported)
CBD: 0.1-1%
Commonly reported effects: Euphoric, Hungry, Relaxed, Sleepy
Flavors: Funk, Garlic, Grape, Sweet
Dominant terpenes: Caryophyllene, Linalool, Myrcene

Growing

Flowering time: 8-9 weeks
Height: 3-4 ft indoors, 5-6 ft outdoors
Difficulty: Moderate
Climate: Warm and stable, 68-79°F, 40-45% RH in flower
Best USDA zones: 6-10 (dry early autumns)
Outdoor harvest: Early October

Yield

Indoor yield: 1.5-1.8 oz per sq ft
Outdoor yield: 19-23 oz per plant

Ranges are typical for this strain and vary with phenotype, environment and technique.

Modified Grapes FAQ

Is Modified Grapes indica or sativa?

Modified Grapes is an indica-dominant hybrid. It grows short and bushy like Purple Punch, and its commonly reported effects lean toward deep relaxation and sleep.

How strong is Modified Grapes?

Our supplier reports THC of 24-29%, which is high by any standard. Phenotype, grow conditions and harvest timing all move the final number, so treat that range as typical rather than guaranteed.

How long does Modified Grapes take to flower?

Most plants finish 8 to 9 weeks after switching to 12/12 indoors. Outdoors in the US, expect a harvest in early October.

How much does Modified Grapes yield?

Indoors, an even, well-lit canopy can produce about 1.5 to 1.8 ounces per square foot. Outdoors, plants in full sun can produce roughly 19 to 23 ounces each.

Is Modified Grapes good for beginners?

It is rated moderate. The compact frame is easy to manage, but beginners need to keep humidity down in flower because the dense buds are prone to mold.

What does Modified Grapes smell and taste like?

Sweet grape and berry jam lead, with a savory garlic funk underneath from its GMO parent. Myrcene, caryophyllene and linalool are the terpenes commonly linked to that mix.

Where does Modified Grapes grow best in the US?

It does best in dry, sunny regions such as inland California, the Southwest, the Colorado Front Range and Utah valleys. Its early October finish also gives Midwest growers a fair shot before fall rain.

How do I get Modified Grapes to turn purple?

Its Purple Punch genetics carry the color, and cooler nights bring it out. Letting nights run about 10°F below daytime temperatures in the last two weeks of flower usually deepens the purple.

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