From Jacksonville heading North

Option #1– Take I-95 North to Exit 373 (A1A / SR 200 Fernandina Beach, Yulee & Callahan
Head west on A1A / SR 200 toward Callahan (so 12 miles)
Turn RIGHT on US HWY 1 at the traffic light in Callahan (go 15.5 miles)
Turn LEFT onto Andrews Road (go 3 miles)
Turn LEFT onto CR 121 at stop sign (go 1.5 miles)
Turn RIGHT onto Tompkins Landing Road (dirt road)
Greenhouse is at the end of Tompkins Landing Road. Enter through gate and turn in front of large greenhouse and proceed to the office on the right.

Option #2 – Take US 1 from Jacksonville, then continue with directions above once cross traffic light in Callahan

From Golden Isles heading South

Head South on I-95 (go 15 miles) and take Exit 14 toward Woodbine
Turn RIGHT onto GA-25 spur (go 2.3 miles)
Turn LEFT onto GA-110 (go 14 miles)
Turn RIGHT onto Okefenokee Parkway / GA-40 (go 7.4 miles)
Take LEFT onto US 1 / US 301(go 4.4 miles and cross into Florida)
Turn RIGHT onto CR 121 (go 5 miles)
Turn RIGHT onto Tompkins Landing Road (dirt Road)
Greenhouse is at the end of Tompkins Landing Road. Enter through gate and turn in front of large greenhouse and proceed to the office on the right.