Balloon Cactus, Ball Cactus, Green Ball Cactus, Blue Ball cactus
Royal Horticultural Society’s Award of Garden Merit
Synonyms of Parodia magnifica: Eriocactus magnificus F.Ritter, Eriocephala magnifica (F.Ritter) Guiggi, Notocactus magnificus (F.Ritter) Krainz ex N.P.Taylor
Parodia magnifica (F.Ritter) F.H.Brandt is the correct and accepted name for this species of cactus. It was named and described as such by Fred Hermann Brandt in Kakteen Orchideen Rundschau in 1982. It was first named Eriocactus magnificus F.Ritter by Friedrich Ritter in Succulenta (Netherlands) in 1966.
The label says Notocactus magnificus which is now a synonym of Parodia magnifica. Notocactus magnificus (F.Ritter) Krainz ex. N.P.Taylor was named and described as such by Hans Krainz and ex-author Nigel Paul Taylor in Cactus and Succulent Journal of Great Britain in 1980. Eriocephala magnifica (F.Ritter) Guiggi is also a synonym of Parodia magnifica.
The genus, Parodia Speg., was named and described by Carlo Luigi (Carlos Luis) Spegazzini in Anales de la Sociedad Cientifica Argentina in 1923. According to Plants of the World Online by Kew, the Parodia genus includes 63 accepted species (as of when I am updating this page on 1-4-20). Many species of cactus have been moved around in the past few years so the numbers change often.
I brought this Parodia magnifica home from Lowe’s on March 29, 2019. The label stated it was a Notocactus magnificus but when I did research I found that name is now a synonym of Parodia magnifica.
It was grown by Altman Plants and the label states:
Notocactus magnificus is a beautifully geometric globular cactus from South America. Blue-green globe with wool and golden spines along the vertical ribs. Forms large clustering mounds in time. Lemon yellow flowers in summer. Protect from frost. Provide bright light; hardy to 20F; to 12” tall. Water thoroughly when the soil is dry.
Parodia magnifica is a native to Rio Grande do Sul in southern Brazil and are also found nearby in Paraguay, Uruguay, and Argentina. The IUCN Red List has them listed as an endangered species. Llifle says they grow on hilly grasslands and on walls between cracks in rocks or in the shade of larger growing plants in deciduous forests. In this climate, they experience warm and cool seasons and grow in soil with plenty of organic matter from the decomposition of other plants. It is said Parodia magnifica can survive temps as low as 20° F if their soil is dry and they are not subject to frost.
This Parodia magnifica was in an 11 oz. (3 1/2” wide x 3 1/4” tall) pot. The cactus measured approximately 2 3/8” wide x 1 3/8” tall without the spines at the time. The golden spines on the side of the cactus are approximately 1/2” long and the spines on top are approximately 3/4” long.
Origin: Southern Brazil
Zones: USDA Zones (° F)
Size: Hmmm… The label says 12”, Dave’s Garden says 24-36”
Light: Full sun to part shade.
*Soil: Fast-draining. Potting soil amended with pumice or chicken grit and perlite.
Water: Regular watering during the summer. Barely, if any, during the winter.
*There are a lot of potting soil recipes online and many people develop their own with experience and what is readily available. Read the ingredients on the bag and always start with a base of a reliable brand name potting soil. I always use either Miracle Grow or Schultz Potting soil because I can buy it in large bags. They also offer cactus soil in smaller bags with similar ingredients. I used 2 parts potting soil with 1 part additional pumice and 1 part chicken grit. After reading that cactus and succulent enthusiasts were recommending pumice in place of perlite and grit, I decided to try. So, since late in 2018 I purchased a bag of pumice online from General Pumice. I have been using a combination of about 50% potting soil and 50% pumice with favorable results.
Once temperatures warmed up enough I moved the cactus to the back porch and the succulents and most of the other plants to the front porch. I was fairly busy over the summer so I didn’t take as many photos as usual.
I had to move the potted plants inside for the winter on October 11 because an “F” was in the forecast. I always photograph the plats as I move them inside and measure the cactus and some of the succulents. The Parodia magnifica measured 2 5/8″ tall x 2 5/8″ wide. Remember it was approximately 1 3/8” tall x 2 3/8″ wide when I brought it home on March 30.
Llifle (Encyclopedia of Living Forms says:
Description: Parodia magnifica is a bluish-green geometric globular cactus with wool that grows in clusters and produces absolutely brilliant yellow flowers. These cacti develop a slight depression on the crown, which may become distorted with age. Parodia magnifica glistens under a haze of pale yellow spines. Cristate (wavy-edged) forms are available but these are usually grafted plants.
Habit: Plants at first solitary, forming large clustering mounds in time.
Stems: Globose, becoming short cylindrical with age, blue-green, glaucous, oblique apically. It grows 30 (or more) cm high and 7-15 cm in diameter.
Ribs: 11-15, straight, symmetrical, acute.
Areoles: White at first, later yellowish close together or almost contiguous.
Spines: 12-15 or more, bristle-like, thin, flexible, goldens yellow, 8-20 mm long.
Flowers: Borne several at a time apically, funnel-shaped, sulfur-yellow, 4,5-5,5 cm long and in diameter; pericarpels with dense white wool and brownish bristles.
Blooming season: Flowering occurs in summer through early fall and will bloom several times during warm weather.
I find the top of cactus particularly interesting…
Several cactus and succulents needed to be repotted so I started doing that on November 13. Some just needed their soil changed while others needed bigger pots. I used about 50/50 Miracle Grow Potting Soil and pumice for the mix. I repot any time of the year as necessary, but I have found Fall is a great time. After a summer of regular watering, the potting mixture can become kind of hard when it is decreased. Repotting in the Fall gives the plants nice and loose soil for the winter. In the above photo, you can see the Parodia magnifica had a nice set of roots.
Unlike many cactus species that grow in Mexico, Parodia species grow in southern Brazil in soil with more organic matter in their soil. They develop a more extensive root system so they prefer a somewhat deeper pot.
Some cactus don’t grow a large root system but they still need repotting as the “stem” starts to fill the pot. There was still plenty of soil in the bottom of the pot with this Parodia magnifica but the stem had become almost as large as the pot.
In years past I would just take the plant from one pot and put it in another without doing anything with the roots. Then later, when I repotted again, sometimes I found the roots still tightly packed in its original wad. So, I started loosening the roots before repotting and sometimes trimming off a few on the bottom. They grow new roots and a little trimming doesn’t bother them. Sometimes you may find rotten or dried roots that need to be trimmed as well.
Then I always make sure the plants are centered in the new pot.
Here the Parodia magnifica is happy in its new pot… Normally, I only increase the pot size by 1 inch but sometimes I can’t find the right size of pot. I have LOTS of smaller pots so there is always a good selection. You can find pots in quantity on Ebay and Amazon. Of course, you may want a nicer pot…
I don’t know much about this plant yet but I will continue to add more photos and information as time goes by. The link below to Llifle provides a lot of useful information.
I hope you enjoyed this page and maybe found it useful. If you have any comments, questions or suggestions, I would like to hear from you. Please click on “like” if you visited this page. It helps us bloggers stay motivated. 🙂 You can check out the links below for further reading. The links take you directly to the genus and species of this plant.