About TimeShift

How we treat the science

Every plant shows where its numbers come from. Where growth timings are backed by published extension or research sources, we link them. Where they are not yet verified, the plant is clearly labelled illustrative. The 3D plants are stylised models, not botanical scans.

• Tomato Solanum lycopersicumIllustrative

  Stage timings, heights and care ranges follow the design reference and are illustrative until verified against a published source.

• Sunflower Helianthus annuus3 sources

  Stage days are average days from planting for North Dakota hybrids; real timing varies with hybrid and weather.

  1. Kandel, Endres & Buetow (eds.), Sunflower Production Guide A1995, NDSU Extension, 2020
  2. Beck, Chapter 2: Sunflower Growth Stages, SDSU Extension, 2021
  3. Atamian et al., Circadian regulation of sunflower heliotropism, floral orientation, and pollinator visits, Science 353, 2016

• Common bean Phaseolus vulgaris3 sources

  Stage days are averages from Manitoba field trials of pinto beans; varieties and weather shift them.

  1. Samaranayake, Erb & MacMillan, Growth and Development of Dry Bean and Yellow Pea in Manitoba, University of Manitoba
  2. CIAT, A scale of development stages of the bean plant Phaseolus vulgaris: a summary for consultation
  3. Duke, Phaseolus vulgaris L., Handbook of Energy Crops (Purdue NewCROP), 1983

• Strawberry Fragaria × ananassa2 sources

  Stage days are a schedule assembled from UMD Extension guidance for a day-neutral strawberry grown from seed; germination timing comes from woodland strawberry. Real timing varies with variety and weather.

  1. Traunfeld, Growing Strawberries in a Home Garden, University of Maryland Extension, 2024
  2. Brown, Plant Data Sheet: Fragaria vesca, University of Washington, 2006

• Watermelon Citrullus lanatus3 sources

  Stage days are a schedule assembled from extension guidance for a transplanted, seeded watermelon; emergence and first-flower days are estimates within that schedule. Real timing varies with variety and heat.

  1. Miller & Ballew, Watermelons, HGIC 1325, Clemson Cooperative Extension, 2023
  2. Orzolek et al., Watermelon Production, Penn State Extension, 2005
  3. Watermelon, Home Vegetable Gardening, Illinois Extension

• Bell pepper Capsicum annuum3 sources

  Transplant age, green and red maturity and fruit-set temperatures come from extension guidance; emergence and first-flower days are estimates. Real timing varies with variety and warmth.

  1. Growing Peppers in a Home Garden, University of Maryland Extension
  2. Pepper transplant production, Extension Bulletin E-1815, Michigan State University, 1985
  3. My Hot Peppers Are Setting Fruit, But Not My Bell Peppers. Why? Iowa State University Extension

• Carrot Daucus carota subsp. sativus2 sources

  Emergence and harvest windows come from extension guidance; the days between are estimates within them. Timing varies with variety and soil temperature.

  1. Drost, How to Grow Carrots in Your Garden, Utah State University Extension, 2020
  2. Commercial Carrot Production, Circular 1232, University of Georgia Extension

• Lettuce Lactuca sativa3 sources

  Germination, head maturity and bolting come from extension guidance; sprout and young-stage days are estimates. Bolting only happens if the plant is left in heat after harvest time.

  1. Torres Quezada & Sanders, Lettuce Production in North Carolina, NC State Extension
  2. Lettuce, Home & Garden Information Center, Clemson Cooperative Extension
  3. Growing Lettuce in a Home Garden, University of Maryland Extension

• Potato Solanum tuberosum2 sources

  Stage days follow UF/IFAS potato growth-stage guidance and UMD harvest timing; flowering timing varies by variety. Real timing depends on variety, depth and temperature.

  1. Zotarelli et al., Nitrogen Fertilization Guidelines for Potato Production in Florida, HS1429, UF/IFAS Extension
  2. Growing Potatoes in a Home Garden, University of Maryland Extension