• Fall Planted/Spring Blooming Flower Bulbs: Optimum Planting Time

  • Dutch Expert Info advises to plant fall bulbs anytime after night temperatures stay between 40 and 50 degrees. They also recommend planting up until 6 weeks before ground freezes. The Dutch recommended “optimum planting times” are shown below by region. However, bulbs can be planted right up to ground freeze, even after if you have to break the frozen crust on the ground, but nobody wants to do that dirty, cold work. In any case, in the cold regions, you CAN plant your bulbs easily up until the ground begins to freeze.
    Region Zones States Optimum planting time *
    New Eng & NY 3, 4, 5, 6 ME, MA, CT, VT, NH, NY, RI Sep 15 – Nov 15
    Mid-Atlantic coastal 6, 7, 8 NJ, DE, MD, eastern VA, Long Island Oct 1 – Nov 30
    Appalachians 5, 6 central PA, Western NC, western VA, eastern TN, WV Sept 15 – Oct 15
    So Atlantic coastal 7, 8 eastern NC, SC, eastern GA Oct 15 – Dec 15
    Great Lakes 5, 6, 7 state of MI, eastern WI Sept 15 – Nov 30
    E. Central 5, 6, 7 IN, IL, KY, western TN Oct 1 – Nov 30
    Central & Great Plains 7, 8 northern AR, northern TX, OK, KS, southern NE, MO, southern IA, eastern CO, eastern NM Oct 15 – Dec 15
    N. Central 3, 4, 5 MN, WI, northern IA, northern NE, eastern WY, eastern MT, ND, SD Sep 15 – Nov 15
    Tropical 10 southern FL (so. of Orlando) Dec 1 – Jan 31
    S. Central 7, 8 eastern GA, AL, MS, northern LA, southern AR, central TX Oct 15 – Dec 15
    Gulf Coast 8, 9 central and northern FL, coastal AL, coastal MS, coastal TX Oct 1 – Dec 31
    Rocky Mountains 2, 3, 4 western MT, eastern ID, western WY, central CO Sep 15 – Nov 1
    Arid West 5, 6, 7 eastern WA, eastern OR, eastern & central areas of entire state of CA, NV, AZ, eastern NM, UT, western CO Sep. 30 – Nov 30
    No. Pacific Coast 8 coastal WA, coastal OR, coastal (far) northern CA Oct 1 – Dec 1
    So Pacific Coast 9, 10 coastal CA from Mexico to Santa Rosa Oct 15 – Jan 30
     

    * You can easily add a full month onto these dates and beat the freezing ground. (applies to all cold areas)