Fixed assumptions: 

• You began planting this seed purchase on March 1, 2025 In Central Texas (Zone 9a)

• March 1 is technically before the average last frost (approx. March 14), but 2025 was a warm spring

  • Last and first frost dates are 30% probability, calculated using 1991-2020 Climate Normals from NOAA.

• Rogers, TX has a historical growing season of 244 days (per Almanac)

• Succession Planting: Essential for single-stem crops like ProCut Sunflowers to ensure you have fresh flowers every Sunday.

• Cut-and-Come-Again: Crops like Zinnias, Cosmos, Basil, and Gomphrena produce more stems the more you harvest.

Phase 1: The "One-and-Done" Schedule (Sunflowers & Stock)

• Sunflowers (ProCut & Starburst): To have blooms every Sunday, you must plant these in batches (successions).

  • Batch 1 (Plant Mar 1): Ready ~April 20 (Sunday Market).

  • Batch 2 (Plant Mar 15): Ready ~May 4.

  • Batch 3 (Plant Mar 29): Ready ~May 18.

  • Continue planting every 10–14 days through August.

• Stock (Iron Purple): Plant all on March 1. They need cool weather to set buds. If planted later, the Texas heat (May/June) will prevent flowering. Harvest likely mid-to-late May.

Phase 2: The "Cut-and-Come-Again" Schedule (Volume Producers)

• Plant on March 1 (Hardy Annuals):

  • Nigella, Orlaya, Cerinthe, Calendula, Godetia: These tolerate cooler March nights. They will bloom late April through May. Note: As Texas heats up in June, these will fade.

• Plant on March 15 (After Frost Risk - Tender Annuals):

  • Zinnias, Cosmos, Celosia, Gomphrena, Basil, Amaranth, Marigolds:

  • Harvest Start: Late May to Early June.

  • Maintenance: Pinch the central stem when plants are 8-12" tall (approx. mid-April) to encourage branching. This sacrifices the first bloom but doubles/triples the flower count for June/July markets.

• Long Season Set (March 1):

  • Eucalyptus, Yarrow, Statice, Salvia (Victoria & Oxford), Aster: Plant immediately. These take 3-4 months to mature. Expect harvest starting late June or July.