The Judean date palm was extinct until 15 years ago, remembered only through pictures, eg. on ancient coins, see below, and mentions in ancient books including the psalms of David. There were also some ancient seeds, 2100 years old, that had been found buried in a jar near the entry ramp of the fortress Masada. Sarah Sallon of Israel’s Natural Medicine Research Center became convinced that these dates had medicinal as well as historical value, and badgered the archeologists for seed samples and permission to try her luck reviving this extinct plant. The archeologists thought she was nuts but eventually she got permission to try her luck with some seeds that Prof Ehud Netzer, had stored in his desk.

Against all odds, Dr. Sallon, in 2005, succeeded in germinating one of these ancient seeds, a feat thought to be botanically impossible. Named, Methuselah it was the oldest seed ever grown, attracting wide international attention. But it was a one-off, a male without a female plant.

Methuselah was, at that point, a historic artifact – an interesting tourist attraction at the center fro sustainable agriculture. There was no way to grow the famous Judaic dates, though without a female parent. But Dr. Sallon was undeterred, she found another archaeologist who had recovered a trove of date seeds from various sites in Qumran — the site where the Dead Sea scrolls had been discovered, plus from the Wadi Makukh and the Wadi Kelt. Some of these seeds were as old as the one that produced Methuselah.

A group headed by Dr. Sallon, selected a total of 34 seeds for further study, choosing specimens that appeared to be visually to be intact, whole seeds, in good condition, and without holes. Chosen to study included more seeds from Masada (8 seeds), Qumran (18 seeds), Wadi Makukh (7 seeds), and Wadi Kelt (1 seed). The seeds were identified by code numbers, photographed, and measured for weight and length (with the exception of Masada seeds, which unfortunately were not measured). One date seed, from the Qumran excavations (HU 37 A11), was selected as a control and left unplanted.

The remaining 33 seeds were subjected to a preparatory process to increase the likelihood of germination): the seeds were soaked in water for 24 hours and in gibberellic acid (5.19 mM) (OrthoGrow, USA) for 6 hours to encourage embryonic growth. This was followed by Hormoril T8 solution (5 g/liter) (Asia-Riesel, Israel) for 6 hours to encourage rooting and KF-20 organic fertilizer (10 ml/liter) (VGI, Israel) for 12 hours. All solutions were maintained at 35°C.

Following the above procedure, one seed was found to be damaged and not planted. The others were separately potted in sterile potting soil, 1 cm below the surface, and placed in a locked quarantine site at the Arava Institute of Environmental Sciences in southern Israel.

Six of these germinated. Periodically they were treated with KF-20 (10 ml/liter) and iron chelate (10 g/liter). Irrigation used desalinated water, as the previous study indicated that using the region’s highly mineralized water produced “tip burn” (darkening and drying of leaves). The seeds that did not germinate were removed for further testing and the shells of the seeds that did sprout were tested to determine their sex,  Of the six, two were determined to be female and four male. The female plants have been named Judith and Hannah, two Biblical names associated with children. It will be many years before they can mate, but it’s a hopeful start. The four other plants are Adam, Jonah, Urial, and Boaz. Radio-carbon dating suggests that one of these female seeds is 2100 years old, like Methuselah, while the other is only 1900 years old. See article in AAAS.

If either of the female plants survives to maturity, and if they prove to be compatible, we may yet get to eat of the famous biblical fruit. When the Bible calls Israel is called the land of milk and honey, the honey is the date honey of this tree.  Will these dry bones yet rise and live? Perhaps so. Dr. Solloway seas the revival of this plant as a symbol of hope. I do too.

Robert E. Buxbaum, June 7, 2020, There is a bit of Frankenstein in any revival of the dead, but I’m ore comfortable bringing back ancient plants than bringing back the Wooly Mammoth, the passenger pigeon, or the T Rex.