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Penny bun, cep, porcino, porcini – fresh spawn (mycelium) – larger package

Old price: $22.25
You save: $5.56 (25%)
Promotion ends 2020-06-04
Promotion ends
Bought by: 82 people
In stock

Penny bun (Boletus edulis), also known as cep, porcino or porcini, belongs to the most sought after wood mushrooms. You may use it in the kitchen in a variety of ways, as penny buns stand out with a great taste and typical, mushroom aroma. Both fresh and dried porcini add character to every dish. Ceps may be found in spruce and pine forests, less frequently in deciduous or mixed forests. This species commonly forms mycorrhizal associations with spruces, although its mycelium also lives in symbiosis with pine, beech and oak trees.

Fleshy penny bun caps are at first semicircular and convex but turn almost flat with time. The mature ones are dark brown, smooth or slightly wrinkled and have white or pale yellow tubes at the bottom. The caps sit atop pale, broad stems. These mushrooms provide great drying material, as they do not turn brown and retain nice, light colour. They develop from summer until late autumn. Using the mycelium available in our store you would be able to harvest them from your own garden.

Place the mycelium onto the ground from April until late autumn. Choose a place in vicinity of trees, because these mushrooms naturally live in forest environment of spruces, pines, oaks and birches. Mix one package of the mycelium with 5 litres of peat and 1 litre of wood coal, ashes from a campfire or your fireplace. You may also use 0.5 litre each of gypsum and vermiculite in order to improve the soil structure. Add plenty of water to the mixture and place 0.5 l portions of it into holes dug under trees. Cover it with a 5 cm thick layer of soil and then mulch with tree bark, coniferous trees' branches or wood ground cover. The mycelium does not require any special care measures, you only need to water it during drought periods each 10-14 days.

Growing mushrooms is not difficult, but in order to enjoy some success you need to provide the fungi with optimal conditions for their growth and development. The species and age of the trees, under which the culture grows, type of soil and environmental conditions belong to the crucial factors here. You will be able to harvest the first mushrooms within 2-3 years.

There are growing instructions and the sow-by date printed on each package of the mycorrhizal penny bun mycelium.

GardenSeedsMarket - has been in business for more than a decade and from the very beginning we have made the quality of our products the top priority. Throughout the years we have delivered the best quality goods to tens of thousands of customers from all over the world. Their satisfaction proves that we had chosen the right way.

All seeds we sell are subject to a multi-level quality control checks and only then are carefully packed and dispatched. Our products have been awarded numerous certificates and comply with the highest standards of the European Union. Our employees are experienced gardeners who are more than happy to answer your every question.

Where do our seeds come from?

All of the seeds sold in our shop come from the best producers from across the European Union. Thanks to a long-standing cooperation with them we were able to develop the most adequate storing and dispatch conditions, guaranteeing that you always receive fresh and carefully tested batches of seeds. Exclusion of the middlemen from the whole process not only makes it possible for us to avoid sending out-of-date seeds that might have been lying too long on a warehouse shelf, but also ensures the most attractive price for top quality products.

The quality control process

All our seeds must pass a four-stage quality control process.

Stage one begins with a careful selection of the suppliers. Than we proceed with controlling their crops, foreign producers are not excluded from the quality control process. Plants are checked at every stage of their development: when they start to grow, during blooming and when they start bearing fruit (seeds). At this stage the most important thing is to ensure proper spacing of the plants. Thanks to that obtaining the desired morphological characteristics of each particular species or variety, such as colour, height and shape, can be ensured.

Stage two consists of a detailed verification tests in laboratory conditions. With the use of the highest quality equipment by the highly qualified staff, our suppliers perform more than 30 000 quality checks annually. The seeds that do not meet our requirements are subject to technological refining processes, including drying, cleaning, upgrading and testing again.

Stage three starts with sowing seeds in selected control plots. That way we obtain valuable, exact information concerning their germination that must be maintained at an appropriate level. Simultaneously, the varietal identity of each species is checked at this stage.

Stage four takes place in our warehouses and consists of eliminating seeds that have been stored for too long on our shelves and replacing them with new batches. Each package is stamped with a unique batch number and also with the sow-by-date.

All four stages combined allow us to state with confidence that the seeds we deliver comply with the highest standards and have completed all required control stages with flying colours.

Prizes and awards

The seeds we sell are widely recognized for their quality and have won many awards. Our seeds won numerous gold medals and distinctions for their high quality. The World of Flowers was also honoured for its innovative approach.


In addition, we have also been awarded the “IDEAL BUSINESS” certificate for two years in a row.


We are committed to selling only the highest quality seeds. Taking into consideration the efforts we make daily, please also note that plants are living organisms and their germination and growth depends on many factors, such as temperature, soil type, humidity and the frequency with that they are watered, sowing time and conditions, use of fertilizers and plant protection agents (pesticides), as well as weather and climate conditions. We provide help by sharing the accurate and up-to-date sowing and growing information, however, we cannot bear any responsibility for the plants that were not cultivated in conditions appropriate for given species.