City climate suitable Archive

DocKalle Acorns from the USA, Acorns southern states

25.2.2025: Various acorns from the south of the USA for sale

It took a long time and a lot of negotiations, but now they are here. Various acorns (oak species) from the south of the USA.
E.g. from North and South Carolina, Georgia, Alabama, Mississippi, Louisiana, Arkansas, Tennessee and Kentucky.
Most of the oak species sold here for the first time are resistant to global warming.

The species can be found here in the store: https://quercus.guru/shop/.

What would we have there?

Different types

Well, for example Quercus michauxi. This species grows up to 30 meters high. This species is rarely used commercially. It occurs from Indiana and Illinois to Texas and Floria.

Quercus virginiana (Virginia oak or live oak): This species is almost evergreen. It is also found in Mexico and grows up to 35 (!) meters tall. The live oak is the symbol of the state of Georgia.

Quercus texana is considered a fast-growing oak. It likes nutrient-rich soils and is very hardy (good street tree). It grows frequently in Mississippi, Alabama, Tennessee and Texas.

Quercus velutina can grow up to 40 meters high. It is often found in Georgia, South and North Carolina and frequently grows on dry slopes.

Quercus hemispherica belongs to the red oak sector of oaks. It is also found in Mexico and loves sandy locations.

Quercus laurifolia grows from Texas to Florida and Virgina. It is robust and can withstand temperatures of over 40 and -26 degrees.

Quercus polymorpha is also found in Mexico, Guatemala and Honduras. The Mexican white oak is native to the state of Texas in the USA and is correspondingly resistant to heat and drought. It usually develops into a fairly small tree here. It is also known as the Monterey Oak.

Quercus shumardii is one of the largest oaks in the red oak group. The tree grows to a height of over 20m. The location should be sunny and the soil moist, loose, well-drained and rather acidic. It is considered to be very drought-resistant.

Quercus lyrata x Quercus nigra is also known as “Compton oak”.

Some acorns are not quite cheap. However, we currently have a voucher promotion for purchases of 50 euros or more. Please enter “klimaschutz” to receive the discount.

Acorns City climate suitable Climate Warming Resistant Oaks Other trees (except oaks) Unkategorisiert

DocKalle Discount

From 50 Euro purchase 20% discount

20% Cart discount

klimaschutz

Expired

i

Ab 50 Euro Einkauf 20 % Rabatt

Acorns City climate suitable Climate Warming Resistant Oaks Other trees (except oaks) Unkategorisiert

DocKalle Discount, Discount

Current: 20% discount on all items

20% Cart discount

klima24

Expired

i

20% discount on all products

Here: https://quercus.guru/shop/

City climate suitable Climate Warming Resistant Other trees (except oaks) Unkategorisiert

DocKalle Climate protection, Climate resistant, Climate tree, Climate trees

26.11.: Climate trees: Obtaining first-class seeds

Climate trees: first-class seeds for sale

Many interesting climarobust species have been supplied. For example Ostrya carpinifolia, the European hop hornbeam. It thrives in large parts of the Mediterranean region, from Provence to Greece. The almond tree (Prunus dulcis) is of course also interesting and a real eye-catcher. Who doesn’t dream of it? To have a beautifully flowering almond tree in your garden (as a potted plant) in spring. Mediterranean flair in your own home. Or the olive (Olea europaea), which is usually found in Italy, Spain or Greece. The climate is changing rapidly. Of course, global warming is not good at all, but for the flora it means that many “climate trees” are now also migrating to Central Europe. And they are still guaranteed hot and dry summers.

Of course, there can still be freezing cold winters, so always bear the “hardiness zone” in mind when growing plants. Many species from hot regions are therefore better grown in pots that can be brought indoors in January, for example, if necessary. Something like this can look wonderful: A large terracotta pot and an almond tree, a caper bush or a chestnut tree in it. It creates the flair of a vacation in Tuscany, Sicily or southern Spain. And of course you are contributing to diversity.

Growing plants “from seed” is a great pleasure, and then there are the climatic trees 🙂 You look after the little seedlings, are happy when they get bigger, at some point they form the first buds, create the first shade growth…Wonderful.

Here is a brief overview

E.G. we now have: Pistachio tree (Pistacia vera)
Feijoa sellowiana (Brazilian guava)
Calycanthus floridus (true spice bush)
Cupressus arizonica (Arizonacypress)
Acacia dealbata (silver acacia)
Myrtus communis (myrtle)
Capparis spinosa (caper bush)
“Wild olive” (Olea europaea var oleaster)
Red horse chestnut (Aesculus carnea)
Black walnut (Juglans nigra)

Take a look at the store: https://quercus.guru/produkt-kategorie/andere-baeume-ausser-eicheln/

Climate trees: Prunus dulcis, Amygdalus communis L.

Acorns City climate suitable Climate Warming Resistant Oaks Unkategorisiert

DocKalle Acorns, Oaks

6.11. 2024: Neu in unserem Shop

New in our store:
Quercus georgiana
Quercus alnifolia
Quercus infectoria subsp. veneris
Quercus senescens
Quercus mexicana x grahamii
Quercus acutissima
Quercus coccifera subs. calliprinos

https://quercus.guru/shop/

City climate suitable Climate Warming Resistant Oaks Other trees (except oaks) Unkategorisiert

DocKalle Tree species resistant to global warming

Growing tree species resistant to global warming

Tree species resistant to global warming

A wonderful hobby: growing tree species that are resistant to global warming. It’s fun, it calms you down, you have the feeling of “doing something”, of making a small contribution to resilience. One thing is certain: native species are extremely important for supporting biodiversity. Unfortunately, it is also fairly certain that many native species will have a hard time in 30 or 40 years, as we need species that are adapted to the heat.

Whenever there is a bit of time, we indulge in this lovely hobby in the evenings and repot seedlings grown from seed. Many, many tree seedlings have made it, and climate warming-resistant tree species are now growing. Many oak species (including native species such as Quercus petraea, the sessile oak) but also several species from global “hot zones”. Quercus douglasii, for example (the blue oak from California), or Quercus faginea (the Portuguese oak). Tree species that are resistant to global warming will also be of great service to us here, even if they are still unfamiliar.

And a classic “secret weapon”. Castanea sativa, the sweet chestnut. It can cope with extreme heat and drought and has already made itself at home in southern Germany. Available here in our store, for example.

Many plant species are protected with sheep’s wool. This retains moisture for a very long time. Even tree species that are resistant to global warming initially require strong protection. Clay balls and vermiculite (a layered silicate used to loosen the soil and store moisture) are used for this purpose. The joy is particularly great when initially weak seedlings gain a big boost due to a change in the soil. Clay balls and vermiculite, for example, ensure that the soil becomes more permeable to oxygen (here is an interesting article on vermiculite: https://vermiculite.de/anwendungen/vermiculite-pflanzenzucht/gemueseanbau-und-blumenzucht/, coffee powder and goat manure, for example, provide much-needed nutrients (depending on the tree species).

I’m really looking forward to it: In the fall and winter, lots of fresh seeds are coming in, from all over the world. Heat-resistant, hardy, drought-resistant, including many acorn and oak species.

Tree species resistant to global warming

Acorns City climate suitable Climate Warming Resistant Oaks Unkategorisiert

DocKalle Oak species from California

27.7.2024: Oak species from California

Acorns and oak species from California

The first species for this year have been selected. In winter 2024, oak species come from California (in the form of acorns). E.g. Quercus lobata (Californian white oak), Quercus x jolonensis and Quercus douglasii (blue oak). This year also: Quercus kellogii (California black oak), Quercus wislizeni and Quercus chrysolepis (canyon oak). After a long, long search I finally managed to find someone who sends acorns of Quercus tomentella from California, but only a very limited number (100 pieces). Oak species from California are special because they are very well adapted to a warming climate. Quercus tomentella is a rarity that is difficult to obtain (see https://en.wikipe dia.org/wiki/Quercus_tomentella). This species originally only occurs on the Channel Islands off California and on “Guadelaupe Island”. This species is highly endangered. It forms hybrids with Querrcus chrysolepis. Quercus tomentella is also known as the island oak. The acorns will probably arrive here at the end of February/March 2025. Quercus kellogii can reach heights of up to 35 meters.
It can be found as far as the border with Mexico.
It grows on slopes at altitudes between 300 and 2400 meters.
It prefers drier soils.

Acorns City climate suitable Climate Warming Resistant Other trees (except oaks)

DocKalle Climate protection, Climate trees

6.4.2024: Growing more climate trees

Lots of whirling in the “climate protection garden”. Trees are grown from seeds here. Buying acorns internationally. Special oaks, acorns and other seeds for collectors and plant enthusiasts. Many species resistant to global warming. Many climate trees. E.g. seeds of plane trees, pines, cypresses and more..https://quercus.guru/.

It is currently mid-season and sales will not start again until the fall. Today, for example, Castanea Sativa (sweet chestnut), cork oaks (Quercus suber) and sessile oaks are planted. It’s a lot of fun, and the species will survive even 1.5 degrees.

Acorns City climate suitable

DocKalle Quercus palustris

8.2.2024: Quercus palustris (swamp oak)

Quercus palustris (swamp oak) is a deciduous tree. In rare cases, it can grow up to 35 meters high. It is relatively short-lived and “only” lives to around 200 years (maximum).

It is originally native to eastern North America. As the name suggests, it can easily withstand several weeks of flooding. Its wood is often used for railroad tracks. Outside North America, the wood is rarely processed industrially due to its limited availability and very low distribution in the forestry industry. In Europe it is sometimes found in parks.

Store: https://quercus.guru/produkt/quercus-palustris/

City climate suitable Climate Warming Resistant Other trees (except oaks)

DocKalle Cedrus Libani

3.2.2024: Cedrus libani (Cedar of Lebanon)

Cedrus Libani (Lebanon cedar) is highly resistant to global warming. It can grow to be over 1000 years old and up to 50 meters high.

The Lebanon cedar grows along the Mediterranean coast, in Lebanon and in parts of Anatolia. In Europe, the tree is predicted to have a golden future due to global warming.

Store: https://quercus.guru/produkt/cedrus-libani/