C99 F4 by HighRise Seeds

C99 F4 strain photo
Type mostly sativaFlower ±55 daysCross Cinderella 99

Bred by HighRise Seeds from Cinderella 99, C99 F4 is a sativa-leaning cannabis variety. Indoors it typically finishes flowering in around 55 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real C99 F4 grows against.

🌿 Start a C99 F4 journal — free →

Similar strains

Diesel99HighRise Seeds · ±65 daysFire 99HighRise Seeds · ±60 daysHighRise Seeds - MOB99HighRise SeedsGhaze99HighRise Seeds · ±65 daysGuerrilla PearlsHighRise SeedsFast Bionic GuerrillaHighRise SeedsCinderella 99 2016Brothers Grimm · ±55 daysClinical White CBDExpert Seeds · ±55 daysCritical Lemon KushTaima Seeds · ±55 daysDP White WidowVandal Genetics · ±55 daysErdbeerClone Only Strains · ±55 daysErdbeerliOriginSeeds · ±55 daysAll HighRise Seeds →
BreederHighRise Seeds
Typemostly sativa
Flowering time±55 days
EnvironmentOutdoors
LineageCinderella 99
DescendantsFire99

🌱 Get C99 F4 seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Cinderella 99 · Fire99

Ancestry Pedigree

Cinderella 99
Brothers Grimm
Princess
Unknown or Legendary
Jack Herer
Sensi Seeds
Northern Lights Nr5
The Seed Bank
USA Mostly Indica
Original Strains
Original Haze
Cultivators Choice
Haze
Unknown or Legendary
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Thailand Sativa
Original Strains
India Sativa
Original Strains
Unknown Strain
Original Strains
P94
Unknown or Legendary
Princess
Unknown or Legendary
Cinderella 88
Unknown or Legendary
Princess
Unknown or Legendary
P75
Unknown or Legendary
Princess
Unknown or Legendary
P50
Unknown or Legendary
Princess
Unknown or Legendary
Shiva Skunk
Sensi Seeds

Growing C99 F4: what to expect

As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Cinderella 99 will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.

C99 F4 FAQ

How long does C99 F4 take to flower?

C99 F4 typically flowers in around 55 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is C99 F4 an indica or a sativa?

C99 F4 is listed as mostly sativa.

What are the parents of C99 F4?

C99 F4 was bred from Cinderella 99 by HighRise Seeds.

What environment does C99 F4 like?

Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.

📷 Growing C99 F4 and something looks off? Free AI photo diagnosis →

Facts compiled from public breeder listings. Growing C99 F4? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

Suggest an edit for C99 F4

Track your own grow free — the journal grades your environment against these bands →

Get the one-page grow reference card

VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.

Or just open the card now — no email needed →

Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.