"Truly befitting of a renowned formation master, your collection is indeed vast. Almost every rare spirit herb available on the market can be found in your herb garden."

"However, each high-grade spirit herb requires different planting methods. It's not something just anyone can grow. How did you manage to grow different types of spirit herbs in one garden?" Long Xuan asked, expressing his greatest curiosity.

In this world, first-grade and second-grade spirit herbs are akin to weeds, growing anywhere without much care, naturally allowing for large-scale cultivation.

However, third-grade and above spirit herbs are different. Due to their special growth requirements, they are extremely rare in the wild. Gu cultivators also find it difficult to cultivate them artificially, requiring research into special planting methods.

In Di xin's herb garden, the number of third-grade and fourth-grade spirit herbs is substantial, with a rich variety. Could she be so knowledgeable as to understand the planting methods of all these spirit herbs?

Even if she were knowledgeable, how could she have the energy to care for so many types of spirit herbs using different methods?

"Guess," Di xin teased.

Long Xuan turned his head and immediately used the Eye of Heaven's Secret to magnify everything before him, scanning the entire herb garden as quickly as possible, trying to find the secret of this garden using his microscopic vision.

The Eye of Heaven's Secret is practically a cheat in this world. It didn't take long for him to find the secret of the herb garden and understand why Di xin could grow so many types of spirit herbs.

He directed his gaze towards the soil where the fourth-grade spirit herbs were growing.

It's the soil, the soil is different. The soil in the herb garden for second-grade and below spirit herbs is all local soil, ordinary and unremarkable.

However, the soil for the third-grade and above spirit herbs is different. The soil is red and contains abundant spiritual energy and incredible fertility. This soil is extraordinary.

Long Xuan couldn't help but walk over immediately, grabbing a small clump of the red soil from under a third-grade spirit herb and examining it closely.

"You discovered it so quickly? Not bad!" Di xin looked at Long Xuan with a smile.

"This is spirit soil. Spirit soil is a magical soil that can accelerate the growth of spirit herbs and can sustain most spirit herbs."

"But those spirit herbs with extreme environmental requirements still cannot be grown, such as spirit herbs that grow in extremely cold places, those that grow in magma, or those that live in water..."

"These overly special spirit herbs cannot be grown even with peak-grade spirit soil."

"Spirit soil is classified into four grades: lower, middle, higher, and peak-grade. My spirit soil is a type called red soil, an low grade spirit soil, which can only sustain most spirit herbs below fourth grade and can only double their growth speed."

Di xin took the storage bags and looked inside, her eyes instantly curving with delight.

Everyone has a bit of gambler's mentality, and Di xin was no exception. What if she really found a peak-grade spirit insect?

With so many fossils, finding a peak-grade spirit insect seemed reasonable!

Thinking this way, Di xin was even happier. She loved the thrill of opening blind boxes and the excitement of unknown challenges.

However, she couldn't imagine that any peak-grade spirit insects would have been picked out by Long Xuan long ago, leaving nothing for her.

Long Xuan had also picked out a considerable number of fossils containing peak-grade spirit insects.

So, although the nine large storage bags were full of fossils, making them look impressive, most were just useless stones. Di xin was destined to make a losing deal this time.

"My remaining spirit soil can just be exchanged for these nine storage bags of fossils. Deal!"

"You need to transplant spirit herbs, right? Select quickly. These spirit herbs need to be priced separately," Di xin said after putting away the nine storage bags.

Long Xuan nodded and immediately walked deeper into the herb garden.

First things first, he needed to pull out those dozen or so spirit herbs with potential to live for ten thousand years.

With these dozen future ten-thousand-year spirit herbs, today's effort was worth it, no matter the cost.

Long Xuan eagerly headed straight for the flat peach tree.

Selecting herbs took Long Xuan half a day, mainly because digging up fruit trees and tea trees was time-consuming.

These tree-type spirit herbs were the most valuable, but each was astonishingly large, making them difficult to dig out.

Luckily, Di xin had a giant beetle with a large shovel-like mouth. One scoop would uproot a tree.

Otherwise, half a day wouldn't have been enough to finish, even with a week.