Index Seminum

We are pleased to introduce our joint Index Seminum with our sister institution, the JC Raulston Arboretum at NC State University!

Member benefit

JLBG member seed selections

So, what is an Index Seminum? Index Seminum is Latin for ‘seed list’. In botanical garden circles it is a free exchange of seed between institutions for the purposes of conservation, education, and scientific research.

Our Index Seminum offerings are seed collected from the combined two gardens’ collections of more than 35,000 taxa. There are two ways to acquire seed from the Index Seminum. If you are a botanical garden/arboreta or a scientific researcher, please send an email to our Garden Curator, Doug Ruhren at doug.ruhren@jlbg.org. The deadline for submitting institutional orders is February 16, 2026. Distributions will be mailed in March 2026.  We cannot provide a phytosanitary certificate.

In early April, once the list has been distributed to our network of botanical gardens and researchers worldwide, it will be posted for members. At that time, you will be able to select a number of packets based on your membership level. Seeds will be subject to availability.

2026 Seed list preview

  • Acanthaceae – Ruellia ‘Black Beauty’
  • Adoxaceae – Viburnum arboricola ‘Taichung’
  • Amaryllidaceae – Nerine angustifolia
  • Apiaceae – Angelica japonica
  • Apiaceae – Dystaenia takesimana
  • Apiaceae – Eryngium ravenellii
  • Apiaceae – Eryngium venustum
  • Araceae – Amorphophallus x konbus ex ‘Little Red Riding Hood’
  • Araceae – Amorphophallus x konbus ex ‘Tall Dark & Handsome’
  • Asparagaceae – Agave ex ‘Green Goblet’
  • Asparagaceae – Agave ovatifolia
  • Asparagaceae – Agave ovatifolia ex ‘Vanzie’
  • Asparagaceae – Agave x amourifolia
  • Asparagaceae – Agave x loferox ex ‘A Step Above’
  • Asparagaceae – Chlorophytum bowkeri
  • Asparagaceae – Dasylirion texanum
  • Asparagaceae – Echeandia chandleri ‘Sierra Chiquita’
  • Asparagaceae – Echeandia texensis ‘Loma del Potrero Cercado’
  • Asphodelaceae – Kniphofia buchananii
  • Asteraceae – Liatris pycnostachya
  • Asteraceae – Rudbeckia maxima
  • Asteraceae – Rudbeckia mohrii
  • Asteraceae – Silphium albiflorum
  • Asteraceae – Silphium glutinosum
  • Asteraceae – Silphium terebinthinaceum
  • Asteraceae – Solidago virgata ex ‘Golden Voices’
  • Asteraceae – Symphyotrichum grandiflorum
  • Asteraceae – Syneilesis x hybrida
  • Asteraceae – Thymophylla pentachaeta var. pentachaeta
  • Bignoniaceae – Tecoma stans v. angustata
  • Brassicaceae – Stanleya pinnata
  • Caryophyllaceae – Silene ovata
  • Celastraceae – Euonymus oxyphyllus
  • Curcurbitaceae – Curcurbita foetidissima
  • Fabaceae – Pediomelum piedmontanum
  • Fabaceae – Wisteria frutescens
  • Iridaceae – x Pardancanda norrisii
  • Paeoniaceae – Paeonia lactiflora
  • Phytolaccaceae – Phytolacca americana ex ‘Sunny Side Up’
  • Pinaceae – Abies nordmanniana subsp. equi-trojani
  • Plantaginaceae – Penstemon harvardii
  • Plantaginaceae – Penstemon ovatus
  • Plantaginaceae – Penstemon smallii
  • Plantaginaceae – Penstemon triflorus
  • Poaceae – Tridens strictus
  • Ranunculaseae – Helleborus x sternii
  • Ranunculaseae – Thalictrum rochenbrunianum var. grandisepalum
  • Rosaceae – Sorbus dunnii
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